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May 29, 2015

Homework Help: physics

Posted by Brianna on Friday, May 11, 2012 at 7:53pm.

A 17-kg rock is on the edge of a 103-m cliff.
(a) What potential energy does the rock possess relative to the base of the cliff?
. J
(b) The rock falls from the cliff. What is its kinetic energy just before it strikes the ground?
J

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