You kick a 225 g rock from the edge of a cliff while hiking along the edge of the Grand Canyon. (a) Ignoring air resistance, find the average power delivered by the force of gravity during the first 4.00 s of the fall. (b) Find the instantaneous power delivered by the force of gravity at the end of the fifth second of the fall

University Physics Volume 1
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Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter8: Potential Energy And Conservation Of Energy
Section: Chapter Questions
Problem 81AP: Repeat the preceding problem, but this time, suppose that the work done by air resistance cannot be...
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You kick a 225 g rock from the edge of a cliff while hiking along the edge of the Grand Canyon.

(a) Ignoring air resistance, find the average power delivered by the force of gravity during the first 4.00 s of the fall.

(b) Find the instantaneous power delivered by the force of gravity at the end of the fifth second of the fall.

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