A roller-coaster car of mass 1.50 x 10° kg is initially at the top of a rise at point @. It then moves 35.0 m at an angle of 50.0° below the horizontal to a lower point ®. (a) Find both the potential energy of the system when the car is at points @ and ® and the change in potential energy as the car moves from point @ to point ®, assuming y = 0 at point ®. (b) Repeat part (a), this time choosing y = 0 at point ©, which is another 15.0 m down the same slope from point ®.

A roller-coaster car of mass 1.50 x 10° kg is initially at the top of a rise at point @. It then moves 35.0 m at an angle of 50.0° below the horizontal to a lower point ®. (a) Find both the potential energy of the system when the car is at points @ and ® and the change in potential energy as the car moves from point @ to point ®, assuming y = 0 at point ®. (b) Repeat part (a), this time choosing y = 0 at point ©, which is another 15.0 m down the same slope from point ®.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 45P: A mysterious constant force of 10 N acts horizontally on everything. The direction of the force is...

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