(e) Once the block begins to slide downward, what upward force on the rope is required to keep the block from accelerating downward? A half-full recycling bin has mass 3.0 kg and is pushed up a40.040.0incline with constant speed under the action of a 26-N force acting up and parallel to the incline. (b) What is the force of the car seat on the child at point B? Given Data Density of the anchor's weight is i=7.8103 kg/m3 Density of saltwater is s=1025 kg/m3 A 400. kg cart slides along the track shown in the image, beginning at point A. (a) The elevator accelerates upward from rest at a rate of1.20m/s21.20m/s2for 1.50 s. Calculate the tension in the cable supporting the elevator. Find the net force on the helicopter att=3.0s.t=3.0s. Scanned Document - lmghs.org (Drag area is0.70m20.70m2) (b) What is the drag force at 70 km/h and 100 km/h for a Hummer H2? Part B This makes physical sensethe force required to stop the roller-coaster depends on its mass. (b) What does the scale read if the elevator moves upward while slowing down at a rate3.8m/s23.8m/s2? characteristics The radius of the loop is 20 m. What is the height of the car at point A? Roller coasters are therefore not built with circular loops in vertical planes. Therefore, as the cart approaches the bottom of the hill where its gravitational potential energy is converted into A dipole with charges -q and +q is placed in ana electric field. Estimate its terminal velocity. (b) Find the angle of the slope down which this box could move at a constant velocity. If the car is moving at 25 m/s what is the smallest horizontal curve it can go around and not exceed a 4.5g limit on acceleration (g = 9.8 m/s?? Use MathJax to format equations. Again, energy is the most direct way to understand this problem. A basketball player jumps straight up for a ball. As he got older, he decided to build and use a staircase instead. Is that trail straight, curved to the left, or curved to the right? m at ground level, as shown. A banked highway is designed for traffic moving at 90.0 km/h. (a) At point A #=18 m//s# Learn more about Stack Overflow the company, and our products. (b) What is the velocity after 15.0 s? While some can be, most are powered with gravity. (b) What is unreasonable about the result? Considering only the #y# component of velocity of the car. We say that the car at that point has a Potential Energy $U$ according to: $U=mgh_1$, where $g=9.81\:\mathrm{ms^{-2}}$ the Earth's acceleration constant, $m$ is the mass of the car (and riders) and $h_1$ that height above the reference line. (a) Assuming the frictional force on the diamond obeysf=bv,f=bv,what isb? Repeat the preceding problem, but this time, suppose that the work done by air resistance cannot be ignored. Webyour cart at the top of your coaster. :). (a) Calculate the minimum forceFhe must exert to get the block moving. characteristics, A:Ionizing Radiation Some books use PE for potential energy. In this problem, you are first asked to find how fast a roller-coaster moves at a given point on the track. Find the positionr(t)r(t)and velocityv(t)v(t)as functions of timet. A particle of massmis located at the origin. (a) What maximum force can you exert horizontally on the crate without moving it? (b) How high above the top of the loop must the roller coaster start from rest, assuming negligible friction? A stunt cyclist rides on the interior of a cylinder 12 m in radius. A 35.0-kg dolphin decelerates from 12.0 to 7.50 m/s in 2.30 s to join another dolphin in play. Can airtags be tracked from an iMac desktop, with no iPhone? for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A A 1250-W toaster, a 320-W blender, and a 75-W lamp are, Q:True or FalseThe planet that has the longest day is mercury, A:Actually, the planet with the longest day in our solar system is Venus, not Mercury. No. We reviewed their content and use your feedback to keep the quality high. (a) Find the acceleration of the system. ONLY changes in potential have meaning,and you must always define a base I couldn't say exactly as I wasn't at the ride at the time, but my wife (about 55 kg) had to go in the car with the smaller child (about 25 kg) and the larger child (about 35 kg) had to go in a car with another child about her size. WebWhen you look at a roller coaster, it might be easy to think that they're engine powered. WebA roller coaster car with its passengers has a mass of 220 kg and it goes through a series of horizontal and vertical curves. The safety features on a roller-coaster have a specific range of height and weight that passengers must be within. Make it so the following parameters are true: 1) The, 6a(5/4) + 2b = 0 3a*2^2 + 2b*2 + c = 0 3a(1/2)^2 + 2b(1/2) + c = 0 how do these three systems of equations produce H(d) = 4d^3 - 15d^2 + 12d + 1 The Question: The given function H(d) = ad^3 + bd^2 + cd, First : 3a*2^2 + 2b*2 + c = 0 3a(1/2)^2 + 2b(1/2) + c = 0 How do the equations equal zero when, H'(1/2) < 0, H'(2) > 0, and H'(2) = 1/2 Second: 6a(5/4) + 2b = 0 3a*2^2 + 2b*2 + c = 0 3a(1/2)^2 +. There are many description of motion problems which can be solved by either kinematics or energy. Coasters A 560-g squirrel with a surface area of930cm2930cm2falls from a 5.0-m tree to the ground. If one of the forces is(2.0i1.4j)N,(2.0i^1.4j^)N,what is the magnitude of the other force? Any time you understand the motion of an object by looking at its energy, you begin with the Conservation of Energy equation. Find the acceleration of the block. The chain return is now usually located inside the spine of the track rather than a separate component. Connect and share knowledge within a single location that is structured and easy to search. The weight of roller coaster carts varies greatly with the roller coaster style. Calculate the acceleration of the system. Because you are given information about the motion of the roller-coaster, you can solve for force using energy (or Newtons Second Law) rather than plugging into the definition of friction. M An object (A) of mass m = 28.5 kg is moving in a direction that makes angle of 62 north of west, Q:Self-Paced Problem 1: This means that as the car accelerates down the slope, $U$ is being converted to $K$. What is the percentage increase in the perceived weight of the passengers? If its mass is2.50103kg,2.50103kg,(a) what is the magnitude of the lift force? > coaster carriage weighs? A roller coaster car with a mass of 500 kg at the top of a hill that Instructions (a) When rebuilding his cars engine, a physics major must exert3.001023.00102N of force to insert a dry steel piston into a steel cylinder. the bottom,, Q:a) Calculate the height of a cliff if it takes 2.56 s for a rock to hit the ground when it is thrown, Q:What are (a) the x component, (b) they component, and (c) the z component of 7 = b + c if =, A:It is given that, 6 Chapter Review We are given complete information about the energy of the roller-coaster at Point A and are asked about the force required to stop it by Point D. Therefore, the second question can be answered by comparing A and D. Because the energy in the roller-coaster is the same from A to C, it is equally fine to compare B to D or C to D (if you solve for vC first.). The contestant now pulls the block of ice with a rope over his shoulder at the same angle above the horizontal as shown below. It gets the cars up to the top, and the speed of the cars is very small during the lifting process and at the top. Find (a) the value of the constantbin the equationv=mgb(1ebt/m),v=mgb(1ebt/m),and (b) the value of the resistive force when the bead reaches terminal speed. Another student pulls the The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid. How white light is different from rest of electromagnetic spectrum. How far away, A:Radiusofnucleus=n=10-15mRadiusoforbitalelectron=e=10-10mScalemodelradiusofnucleus=N=1.4, Q:Determine the time constant of the LR circuit. The car rounds a circular track of radius 300.0 m at a speed of 90.0 km/h. (b) Once the rescue is complete, Tarzan and Jane must swing back across the river. Therefore, at any location #x#, speed #=sqrt (v_x^2+v_y^2)# 8 Potential Energy and Conservation of Energy, Thermal Expansion in Two and Three Dimensions, Vapor Pressure, Partial Pressure, and Daltons Law, Heat Capacity of an Ideal Monatomic Gas at Constant Volume, Chapter 3 The First Law of Thermodynamics, Quasi-static and Non-quasi-static Processes, Chapter 4 The Second Law of Thermodynamics, Creative Commons Attribution 4.0 International License, [latex]{f}_{\text{s}}\le {\mu }_{\text{s}}N[/latex], [latex]{F}_{\text{c}}=m\frac{{v}^{2}}{r}\enspace\text{or}\enspace{F}_{\text{c}}=mr{\omega }^{2}[/latex], [latex]\text{tan}\,\theta =\frac{{v}^{2}}{rg}[/latex], [latex]{F}_{D}=\frac{1}{2}C\rho A{v}^{2}[/latex], [latex]{F}_{\text{s}}=6\pi r\eta v[/latex]. (c) If it actually starts 5.00 m higher than your answer to (b), how much energy did it lose to friction? (b) How much time elapses before it reaches the bottom of the track? (850 kg)(9.8 m/s2)(140 m) = (850 kg)(9.8 m/s2)(80. m) F(120 m)cos(1800) P7.79). Seriously, I would not trust rides like that. Answered: Example 3: In this rollercoaster | bartleby Show that the acceleration of any object down an incline where friction behaves simply (that is, wherefk=kN)fk=kN)isa=g(sinkcos).a=g(sinkcos). Find the tension in the string: (a) at the top of the circle, (b) at the bottom of the circle, and (c) at a distance of 12.5 cm from the center of the circle(r=12.5cm).(r=12.5cm). Roller Coasters Energy, work, or power has to be transferred from one mechanical part to another to run a machine. A roller coaster has a mass of 275 kg. Wnc is any work done by non-conservative forces, such as friction or a push, which take energy in or out of the system of interest. K = (b) If you continue to exert this force once the crate starts to slip, what will its acceleration then be? What is it? A roller coaster whose average speed is 32 ms is at the top of a 72m hill and weighs 966N. e) What is the initial KE,, A:According to guidelines we can solved only three subparts. Initial #PE=mgh=PE(x)+KE(x)#. each. (Ignore rolling.) If the particle is fired vertically with velocityv0v0from Earths surface, determine its velocity as a function of positionr. (Hint:useadr=vdv,adr=vdv,the rearrangement mentioned in the text. Roller coaster Find the positionr(t)r(t)and velocityv(t)v(t)as functions of timet. A 2.0-kg object has a velocity of4.0im/s4.0i^m/satt=0.t=0. WebThe value of 30 m/s is reasonable for motion of a roller-coaster. Find the magnitude of the force the garbage exerts on the floor of the service elevator? (Hint:since the distance traveled is of interest rather than the time,xis the desired independent variable and nott. Use the Chain Rule to change the variable:dvdt=dvdxdxdt=vdvdx.)dvdt=dvdxdxdt=vdvdx.). (b) At point B. Minimising the environmental effects of my dyson brain, The difference between the phonemes /p/ and /b/ in Japanese. Can any type of force (for example, tension, gravitational force, friction, and so on) be a centripetal force? You can neglect air resistance in both parts. First week only $4.99! P Its position at any time is given byx(t)=pt3+qt2x(t)=pt3+qt2wherepandqare constants. Many cars are roughly a ton. Both wood and steal. The table and the pulley are frictionless. In this instance, the acceleration is known. the initial height 54.0 m is great enough so that the car never loses contact A roller coaster car with its passengers has a mass of 220 kg and it goes through a series of horizontal and vertical curves. A roller coaster car is Draw the free body diagrams for the car going around a horizontal curve, the bottom of a vertical loop, and the top of a vertical loop in which the cart is upside down. The coefficient of static friction between the tires and the wall is 0.68. Express your answer numerically, in joules. WebMany roller coasters have a vertical loop, 20 m high. For safety, the cars are attached to the rails in such a way that they cannot fall off. at the top of the hill, the passengers "feel light," with an apparent weight only 50% of their true weight. Consider a particle on which several forces act, one of which is known to be constant in time: . 10 In the second part of this problem, you are asked to find stopping force given stopping distance. a lot. Physics 1 Answer A08 Jan 19, 2016 (a) At point A = 18m/s (b) At point B 26.94m/s N B) 12.5 N C) 25.0 N D) 50.0 N The acceleration due to gravity on the surtacc of planet X is 19.6 meters per second2 If an object on the surface of this planet weighs 980. newtons, the mass of the object is A) 100. kg B) 50.0 kg C) 490. it is also assumed that there is no loss of energy due to air friction. KE A + PE A = KE D + PE D - W nc 0 + mgh A = 0 + mgh D - W nc (850 kg)(9.8 m/s 2)(140 m) = (850 kg)(9.8 m/s Find the value of the minimum speed for the cyclist to perform the stunt. Because essentially no energy is lost from the system (you are told friction and air resistance are negligible,) the amount of energy in the system remains constant throughout. #mgh/2=KE_#(B)#=1/2 m v_B^2# Also, assume negligible force exerted by her arms. What is the acceleration of the system? In a later chapter, you will find that the weight of a particle varies with altitude such thatw=mgr02r2w=mgr02r2wherer0r0is the radius of Earth andris the distance from Earths center. Has 90% of ice around Antarctica disappeared in less than a decade? A plumb bob hangs from the roof of a railroad car. An object with massmmoves along thex-axis. A converging mirror has a focal length of f = 18 cm. > just a thought Each cart rolls freely with negligible friction. To do this, he lowers his body 0.300 m and then accelerates through this distance by forcefully straightening his legs. Suppose a mass is moving in a circular path on a frictionless table as shown below. So I set the normal force equal to zero just before it would leave the track and use.. 2023 Physics Forums, All Rights Reserved, Roller coaster and centripetal acceleration, Speeds of the rolling ball at different points in this roller coaster track, Speed at the top of an elliptical roller coaster loop, Normal force at the top of a vertical loop -- Circular Motion Dynamics, Help me solve this equation please -- Roller Coaster Motion, Physics roller coaster problem that uses kinematics, forces, work, power and energy, Grade 12 Kinematics Question -- Throwing a ball at an angle from the top of a cliff, Buoyant force acting on an inverted glass in water, Newton's Laws of motion -- Bicyclist pedaling up a slope, Which statement is true? What is the direction of the force exerted on you by the car seat? (a) What is the acceleration of the protons(m=1.671027kg)(m=1.671027kg)that move around the accelerator at5%5%of the speed of light? > rollercoaster carriage? Inspection reveals that #y# component of velocity is created due to change of #PE=mgh#, in to #KE=1/2 m v^2#. Located at the origin, an electric car of massmis at rest and in equilibrium. If the horse pulls the Explain in an inertial frame of reference (Earth is nearly one) what pins the riders to the wall, and identify all forces acting on them. d M the kinetic energy of (c) Which premises are unreasonable or inconsistent? (a) What is the speed of the roller coaster at the top of the loop if the radius of curvature there is 15.0 m and the downward acceleration of the car is 1.50g? Originally the PTC cars (3 seater) weighed about 1500 to 1600 lbs. height h, Q:As shown below, a wire loop is immersed in a 0.8 T B-field (the direction of the field is shown in, Q:The 20-g bullet is travelling at 400 m/s when it becomes embedded in the The situation is same as at #t=0#, where #v_y =0#. r=a-b+c, Q:8. Otherwise you're looking at weights anywhere from the hundreds of pounds into the thousands of pounds for each car, depending on which coaster. Find the required height h of the release point above the bottom of the loop in terms of R. (b) Now assume the release point is at or above the minimum required height. The normal force on an object is not always equal in magnitude to the weight of the object. Express your answer in newtons and as a ratio to the weight of the shell. Therefore, there is no need to solve for the speed of the rollercoaster at Point C. You can set up the Conservation of Energy equation between Point A and Point D. However, it is perfectly fine to solve the intermediate step of finding the velocity at Point C if you like. that Use P.E. There is however one complication: my ideal scenario doesn't account for any energy losses due to friction between car and track or air drag losses. Qualitative roller coaster 6. If the car goes over the top at just the right speed, gravity alone will supply the centripetal force. All are equivalent and refer to the same thing. The coefficient of friction on the left surface is 0.30, and on the right surface 0.16. (b) What is the maximum force that can be applied upward along the plane on the rope and not move the block? The ride's queue line is surrounded by bamboo, which adds to the jungle theming. Flow rate Q=550 kg/h =0.153kg/s A freight train consists of two8.00105-kg8.00105-kgengines and 45 cars with average masses of5.50105kg.5.50105kg. This means energy can be compared at any two points. A 20.0-g ball hangs from the roof of a freight car by a string. What is the maximum forceFthat can be applied for the two blocks to move together? the end. The engine provides a constant thrust of 120.0 N. (a) Write an expression for the mass of the space probe as a function of time, between 0 and 30 seconds, assuming that the engine ignites fuel beginning att=0.t=0. (d) Write an expression for the position as a function of time, fort>30.0s.t>30.0s. Direction of induced current: no induced curent , Q:All household circuits are wired in parallel. Again, a reasonable value. Scanned Document - Leon M. Goldstein High School for the #implies v_B^2=9.8 xx 41=401.8#, for y direction only What are the units used for the ideal gas law? (a) Find the tension in the rope and the force that the mountain climber must exert with her feet on the vertical rock face to remain stationary. Pe = m g h = 80 * 10 * 30 Joules > just a thought in the interior, A:givenNetchargeofcell=-7.52pC, Q:Bark Angle The roller-coaster track includes a circular loop of radius R in a vertical plane. In a television commercial, a small, spherical bead of mass 4.00 g is released from rest att=0t=0in a bottle of liquid shampoo. When a body slides down an inclined plane, does the work of friction depend on the bodys initial speed? Supposing the mass of the skier is 50 kg, what is the speed of the skier at point B ? Riders feel as if they are pinned to the wall by a force something like the gravitational force. a. Draw the free body diagrams for the car going around a horizontal curve, the bottom of a vertical loop, and the top of a vertical loop in which the cart is upside down. At any point #x# How far is the spring stretched? B&M sit down, or stand up, or inverted? I couldn't say exactly as I wasn't at the ride at the time, but my wife (about 55 kg) had to go in the car with the smaller child (about 25 kg) and the Find the change, Q:A 800 lb horse pulls a 200 lb cart with Is a collection of years plural or singular? Charge(q)=5 uC How long will it take for each skydiver to reach the ground (assuming the time to reach terminal velocity is small)? Newtons laws of motion can be applied in numerous situations to solve motion problems. The cars have become heavier over the past 20 years It is equally fine to pick the lowest point considered in the problem (Point D) to be h = 0. (b) The car goes over the top at slower than this speed? JavaScript is disabled. (d) If the elevator had no brakes and the cable supporting it were to break loose so that the elevator could fall freely, what would the spring scale read? (c) What does the scale read if the elevator moves upward at constant velocity? CP1 Fall 2019 page 1 of 1. Define centripetal force. A service elevator takes a load of garbage, mass 10.0 kg, from a floor of a skyscraper under construction, down to ground level, accelerating downward at a rate of1.2m/s21.2m/s2. What is the total mechanical energy of the roller coaster cart at point A? In the figure, a frictionless roller coaster car of mass m = 805 kg tops the first hill with speed vi = 18 m/s at height h = 41 m. What is the speed of the car at (a) point A, (b) point B, and (c) point C? The ride's sign and station all have mythical Indian-style theming. The magnitude of static friction force between two materials stationary relative to each other is determined using the coefficient of static friction, which depends on both materials. If the coefficient of kinetic friction between tires and road is 0.550, and the acceleration was constant during braking, how fast was the car going when the wheels became locked? A 60.0-kg and a 90.0-kg skydiver jump from an airplane at an altitude of6.00103m6.00103m, both falling in the pike position. If the coefficient of friction between the box and the belt is 0.27, how long will it take before the box moves without slipping? (c) At Point C #approx 33.58m//s# Arrow cars (2 seaters) weighed around 1=45.5 Two friends are having a conversation. Show that the maximum angle of an incline above the horizontal for which an object will not slide down is=tan1s.=tan1s. The rotational velocity is 200.0 cm/s. A:Given data- Thanks, Responses roller-coaster car accelerating as it moves down a hill roller-coaster car accelerating as it moves down a hill roller-coaster car slowing as it moves up a. ), A car of mass 1000.0 kg is traveling along a level road at 100.0 km/h when its brakes are applied. In its present state, the crate is just ready to slip and start to move down the plane. As you will learn in the course of this problem, P7.81). WebA child of mass 40.0 kg is in a roller coaster car that travels in a loop of radius 7.00 m. At point A the speed of the car is 10.0 m/s, and at point B, the speed is 10.5 m/s. Magnitude of Vem i = (b) The riders cage hangs on a pivot at the end of the arm, allowing it to swing outward during rotation as shown in the bottom accompanying figure. U = potential energy = m g h WF = Fd cos. (d) If the block is given a slight nudge to get it started down the plane, what will be its acceleration in that direction? Calculate the tension in the two ropes if the person is momentarily motionless. Take care. (a) Calculate the tension in each of the two ropes supporting the swing under these conditions. Average Weight of a Roller Coaster Cart in Kg Is it possible to rotate a window 90 degrees if it has the same length and width? acceleration = a = 4 m/s2 A standard 4 (3 bench) or 6 (2 bench) car PTC train used to weigh 6 tons. But that was with out all the extra crap they introduced in the 90s (indi A machine at a post office sends packages out a chute and down a ramp to be loaded into delivery vehicles. As a skater forms a circle, what force is responsible for making his turn? WebRoller coaster trains have wheels that run on the sides (side friction or guide wheels) and underneath the track (upstop, underfriction, or underlocking wheels) as well as on top of it (road or running wheels); these lock the train to the tracks and prevent it from jumping the track.The side wheels can be mounted on the outside or inside of the train, depending on 6 Chapter Review Do you mean a Corolla or an SUV? final velocity of car, Q:At a certain location, the horizontal component of the earth's magnetic field is 3.7 x 10-5 T, due, Q:The Addition and Resolution Given: radius of circular motion = R = 18 m weight of passengers = w apparent weight of passengers = N = 50%w Asked: The Coney Cyclone is one example though: Since the work of the gravitational force mg is path Independent, what did the King of the Apes gain in using stairs? Roller Coasters Do you feel yourself thrown to either side when you negotiate a curve that is ideally banked for your cars speed? Example 3: In this rollercoaster question, the track is older, so the 15 kg cart experiences an average frictional force of 50 N while on the track. Gravity applies a constant downward force on the roller coaster cars. Mass is present in all terms of the equation, and so it can be divided out. and, She must swing into a wind exerting constant horizontal force F, on a vine having length L and initially making an angle with the vertical (Fig. around the world. TH What is (a) the acceleration of each block and (b) the tension in the string? How much do the roller coaster carts weigh? arrow_forward Literature guides Concept explainers Writing guide Popular textbooks Popular high school textbooks Popular Q&A Business Accounting Economics Finance Leadership Management Marketing Operations Management Engineering Bioengineering Chemical Engineering Civil Engineering When the car takes a turn, the track must be able to supply a force $F_c$ known as the centripetal force in order to keep the car on the track: $\large{F_c=\frac{mv^2}{R}}$, where $R$ is the radius of the bend. Stokes law describes sedimentation of particles in liquids and can be used to measure viscosity. (230 kg) golden tabby Bengal tiger that lives in a pen next to the ride. , A:Here maximum current is Imax=9.5A Suppose you have a 120-kg wooden crate resting on a wood floor, with coefficient of static friction 0.500 between these wood surfaces. Two blocks are connected by a massless rope as shown below. The wheels become locked (stop rolling), and the resulting skid marks are 32.0 meters long. WF = Fd cos. The force of gravity will cause it to speed up as it moves down the hill. View Available Hint(s) = mgh where m is the mass of your cart in grams, h is the height of your track and g=9.8 N/kg to calculate the potential energy. initial velocity of car = V0 = 0 m/s 1 Answer Michael Nov 9, 2016 #sf(41color(white)(x)"m/s")# Explanation: The potential energy of the roller coaster is converted into kinetic energy when it reaches the bottom. Its mass is1.50103kg1.50103kg. Human nerve cells have a net negative charge and the material A roller coaster car with its passengers has a mass of 220 kg and it goes through a series of horizontal and vertical curves. A 1000 kg roller coaster begins on a 10 m tall hill with an initial velocity of 6m/s and travels down before traveling up a second hill. During a moment of inattention, the mini-fridge slides down a 35 degree incline at constant speed when she applies a force of 25 N acting up and parallel to the incline. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. As it is released, its velocity is 4.4 m/s. All that matters for describing motion and energy is that you explicitly state where your reference point is. Each car on The Beast weighs 2,300 pounds with the weight of a full train (without riders) 13,800 pounds. In this case, you start out with stored gravitational potential energy and convert part of that energy to kinetic energy. Tom says a satellite in orbit is not in free fall because the acceleration due to gravity is not9.80m/s29.80m/s2. Can someone briefly sketch the equations here? What is the normal force between the piston and cylinder? During decay current reaches the 37% of maximum current., Q:Some fish have a density slightly less than that of water and must exert a force , by swimming , to, A:The concept behind this problem is buoyancy, which is the upward force that a fluid exerts on an, Q:10:21 AM Thu Mar 2 (The scale exerts an upward force on her equal to its reading.) WebA 725 kg roller coaster car is at the top of a roller coaster car is at the top of a roller coaster as shown below. On average, these carts can weight between 600 and about 1000 pounds each. How much do roller coaster cars usually weigh? [Other] - Theme The coefficient of friction is80%80%of that for the static case. O+ As shown below, ifF=60.0NF=60.0NandM=4.00kg,M=4.00kg,what is the magnitude of the acceleration of the suspended object?
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