A 250 kg roller coaster is at the top of a hill with a velocity of 5.60 m/s from a height of 70.0 m above the ground.    A) Determine the velocity of the roller coaster at a height of 40.0 m further down the track, neglecting friction. [3] B) What reference point did you choose as zero height? Show how you could come up with the same answer to A if you chose another reference point for height.

Q: A 4-kg block is placed at point 1 on the track that is 3.5 m above the ground. Paths 1-2 and 3-4 are…

A: Write the given values with the suitable variables. m=4 kgh1=3.5 md=2 mμ=0.25 Here, m, h1, d, and μ…

Q: 17. A ball of mass 0.25 kg is thrown vertically upward from the roof of a building 18 m high with a…

A: The mass of the ball, The height of the building, The speed of the ball,

Q: A 2500. kg roller coaster filled with kids at an amusement park in Portland begins its run…

A: Initial height = 24 m  Final height = 18 m  Difference in height = 6 m  Radius of loop = 18/2   = 9…

Q: Two blocks A and B having masses m-100 kg and mg-15 kg are interconnected by the cord-pulley system.…

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Q: An all-star cheerleading team throws a 40 kg flyer cheerleader into the air from an initial position…

A: We know that time to reach maximum height of a projectile is given as  T=ug Where u is initial speed…

Q: Gayle runs at a speed of 3.20 m/s and dives on a sled, initially at rest on the top of a…

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Q: A projectile of mass 0.569 kg is shot straight up with an initial speed of 28.7 m/s. (a) How high…

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Q: The roller coaster cart has a mass of 350 kg. Start your motion from rest at point A. Assuming no…

A: (a) Speed of cart at point B VB = 22.14 m/s (b) Apparant force felt by passenger at point B  Fp=…

Q: A hand pushes block A (ma = 3 kg) with a constant force Nand. A 75 N for a distance Ax = 2 m along a…

A: In the elastic collision, both the energy and the momentum are conserved. Whereas, in an inelastic…

Q: he roller coaster cart has a mass of 350 kg. Start your motion from rest at point A. Assuming no…

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Q: A hockey puck is at the top of a 10 m long slippery slope, that makes an angle of 30° to the…

A: h= 10 m v= 5 m/s First, find the verticle height  H= h sin θH=10 sin 30H =5 m   For the conservation…

Q: 10. An olympic long jumper (86 kg) throws themselves at a 30* angle to the horizontal. Calculate the…

A: solution is give as

Q: A 0.23 kg apple falls from a tree to the ground, 4.0 m below. Ignore air resistance. Take ground…

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Q: 2.0-kg block was released from rest at point A. It then moves through point B until it finally stops…

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Q: a). A cannon located 10 m from the ground is used to shoot a metal ball directly upward into the air…

A: a ) Maximum height the ball will travel measured from the ground  Maximum height the ball will…

Q: In the logging camps many years ago, horses were used to pull logs out of the woods rather than…

A: Here given that the mass of log is 700 pound.The distance is covered by 500 ft. It is pulled at an…

Q: In an ore-mixing operation, a bucket full of ore is suspended from a traveling crane which moves…

A: Draw the schematic diagram of the system.

Q: Question 2) A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp…

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Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A: Solution:

Q: A box with mass 5.00 kg starts sliding down a ramp (1.00 m long) which is inclined at an angle…

A:

Q: A box starts with a velocity of 10 m/s and falls along the frictionless path shown below. What is…

A: Apply conservation of energy at each points, At B,…

Q: A 32.0-kg  crate, starting from rest, is pulled across a floor with a constant horizontal force of…

A: Image-1

Q: In the figure, a ball of mass m-5 kg was given an initial speed of 1.04 m/s at position A. find the…

A: Given: The mass of the ball is 5 kg. The initial speed of the ball is 1.04 m/s. Introduction: When…

Q: Solve using conservation of E. A 30.0 kg block slides 8.00 m down a ramp with a height of 4.50 m.…

A: Please see the attached images for the solution. If there are queries or if the images are not…

Q: A 60.0 kg skier with an initial speed of 10.0 m/s coasts up a 2.50 m high rise as shown in the…

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Q: A skier starts from rest at the top of a rictionless incline of height 20.0 m, as shown in the…

A: Given data as per question Friction between skis and snow =0.209 Calculation speed at bottom at…

Q: 2. The small cart has a speed V, = 4 m/s at point A. Neglecting friction, determine its speed va as…

A:

Q: A hlook is placed on a frictionless ramp at a height h; of 14.5 m above the ground. Starting from…

A:

Q: On a frictionless surface, a man wants to move forward, can it move forward? Explain

A: The answer is below

Q: A block, of mass 5.0 kg, is released from rest at point "A" and slides down on a frictionless jet as…

A: In given question, as the jet is frictionless, there is no dissipative force, Hence total mechanical…

Q: A 4-kg block is placed at point 1 on the track that is 3.5 m above the ground. Paths 1-2 and 3-4 are…

A:

Q: A 110 kg block is pushed with a force of 340 N in the direction indicated on the image, on a plane…

A:

Q: A 69.0-kg skier with an initial speed of 12.8 m/s coasts up a 2.30-m high rise as shown. Find her…

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Q: A 60.0 kg skier starts from rest at the top of a 1500.0 m long trail which drops a total of 230.0 m…

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Q: Part (b) If the block has a mass of 1 kg, what is the average power supplied to the block by…

A: Power supplied = (work done by friction) /(time) First: calculate time required to stop the block…

Q: An average froghopper insect has a mass of 11.3 mg and jumps to a maximum height of 308 mm when its…

A:

Q: A block is placed on top of a ramp with friction. Initially it is at rest. Then it slides down and…

A: Given values: Mass, m=1.8 kg Angle of inclination ,θ=20° Friction ,f=2 N Acceleration due to…

Q: A truck (m = 10000 kg) is traveling at a speed of 30 m/s (about 70 mph) down the Kailua side of the…

A: Given  Mass of truck m=10000kg Initial height h1=10m Initial velocity v1=30m/s Final velocity…

Q: A weight lifter lifts a 350-N set of weights from ground level to a position  over his head, a…

A: Given : F = 350 N d = 2.00 m

Q: Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force…

A: We will first find the acceleration of the firefighter using Newton's second law. We then use…

Q: Gadon leaves the top of a hill with an initial speed of 5.0 m/s. His speed at the bottom of the hill…

A: Given data as per question v  =  13m/s u   =  5m/s g  =  9.81m/s2

Q: The ABC part of the road in the figure is frictionless, beyond C the friction coefficient is u =…

A: The mass of the ball, m = 2 kg. The velocity of the ball at point A, vA is 3 m/s. The coefficient of…

Q: A0.28-kg rock is thrown vertically upward from the top of a cliff that is 31 m high. When it hits…

A:

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.