A rock of mass m and a rock of mass 2m are both released from rest at

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A rock of mass m and a rock of mass 2m are both released from rest at the same height and feel no air resistance as they fall. Which statements about these rocks are true? (There may be more than one correct choice.)

(a) Both have the same initial gravitational potential energy.

(b) Both have the same kinetic energy when they reach the ground.

(d) When it reaches the ground, the heavier rock has twice the kinetic energy of the lighter one.

(e) When it reaches the ground, the heavier rock has four times the kinetic energy of the lighter one?

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University Physics with Modern Physics

ISBN: 978-0321696861

13th edition

Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford

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Question Posted: Feb 10, 2020 05:58 AM

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A rock of mass m and a rock of mass 2m are both released from rest at

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University Physics with Modern Physics

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