A 155kg roller coaster starts at position A from rest. If the path has a constant friction force f = 32 What is the speed of the roller coaster at position B? The distance from A to B is 40 m. What is the speed of the roller coaster at point B after traveling the 10 m radius loop? Can the roller coaster reach position D now? Explain your reason С 20 m тек 25 m D 25 m

A roller coster has a loop with 7.62 diameter. a) What is the minimum height above the bottom of the loop required to acheive enough speed so that the coaster does not loose contact with the track? b) How many g's does the passenger expirience at the top of the loop AND at the bottom of the loop upon entering the loop.? c) suppose the coaster came to rest at 3/4 h on the other side of the loop. What fraction of the energy was lost?

A ball is released at a height of h=2.70 m on a frictionless 30.0o slope. At the bottom, it turns smoothly (without loss of speed) onto a 60.0o slope going back up. What maximum height does it reach on the right side?

A particle, starting from point A in the drawing (the height at A is 3.00 m), is projected down the curved runway. Upon leaving the runway at point B, the particle is traveling straight upward and reaches a height of 5.02 above the floor before falling back down. Ignoring friction and air resistance, find the speed of the particle at point A. I

A 1400 kg car delivers a constant 42 hp to the drive wheels. We assume the car is traveling on a level road and that all frictional forces may be ignored.A) What is the acceleration of this car when its speed is 10 m/s?B) If the speed of the car is doubled, does its acceleration increase, decrease, or stay the same? Explain

Computation. A block is released from rest at the top of a 47-m long frictionless ramp inclined at 34° above the horizontal. What is the block's speed at the bottom of the ramp? v= m/s Record your numerical answer below, assuming three significant figures. Remember to include a "-" if/when necessary.

See photo x = 36.0 m, y = 38.2 m, z = 43.2 m a. Assuming the track is frictionless, what is the minimum speed required at Point A for the roller-coaster to reach Point B? b. If the roller-coaster starts at Point A with this speed, how fast will it be going when it reaches Point B? c. What will be the maximum speed of the roller-coaster during this part of its trip?

HW 5 3. A playground slide is in the form of an arc of a circle with a maximum height of 2.5 m, with a radius of 8.8 m, and with the ground tangent to the circle. Dr. Ritchey's 16 kg toddler starts from rest at the top of the slide and has a speed of 3.4 m/s at the bottom. a. What is the length of the slide? b. What average frictional force acts on the toddler over this distance? 2.5 m 2022-0 O puck position1.xlsx 2022-02-23 17-36...pdf 22-02-27 22-32.pdf Lab4.pdf

A car has an engine that produces constant power. The car is accelerated from rest at t = 0, and at t = t0 the acceleration is a0. What is the acceleration of the car at = 4t0?

A small sphere of mass m is launched horizontally over a body of water from a height h above the water and with a launch speed v0. Determine expressions for the following in terms of m, v0, h, and g. Air resistance is negligibly small. W is the amount of work done by the force of gravity on the projectile during its flight. ΔKE is the change in kinetic energy ΔKE of the projectile from the time it was fired until it hits the water. KEf is the final kinetic energy KEf of the projectile as it hits the water.