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Ah = ? Ax = 20m

Ah = ? Ax = 20m

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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250 kg starts at the top of a hill as shown below. The initial speed of the 6) A roller coaster cart of mass roller coaster is 10 m/s. Ah = ? Ax = 20m a) If it reaches the top of the next hill with a speed of 15 m/s, what is the vertical distance between the tops of the two hills? Assume that friction is negligible. b) If the distance from the top of the first hill to the ground is 3 times the vertical distance you found in part a, what is the speed of the cart once it reaches the ground? c) At the end of the ride, the cart is brought to rest from the speed that you found in b). How much work was done to bring the cart to rest? How far did the cart travel before coming to rest if the coefficient of kinetic friction is µk = 0.6. d) What average force was delivered to the cart during this time if the cart was stopped in 20 meters?
Transcribed Image Text:250 kg starts at the top of a hill as shown below. The initial speed of the 6) A roller coaster cart of mass roller coaster is 10 m/s. Ah = ? Ax = 20m a) If it reaches the top of the next hill with a speed of 15 m/s, what is the vertical distance between the tops of the two hills? Assume that friction is negligible. b) If the distance from the top of the first hill to the ground is 3 times the vertical distance you found in part a, what is the speed of the cart once it reaches the ground? c) At the end of the ride, the cart is brought to rest from the speed that you found in b). How much work was done to bring the cart to rest? How far did the cart travel before coming to rest if the coefficient of kinetic friction is µk = 0.6. d) What average force was delivered to the cart during this time if the cart was stopped in 20 meters?
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Given that:m=250 kguA=10 m/suB=15 m/s

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