You drop a 2.50 kg book to a friend who stands on the ground at distance D-10.0 m below. If your friend's outstretched hands are at distance d - 1.80 m above the ground (see the figure), (a) how much work W does the gravitational force do on the book as it drops to her hands? (b) What is the change AU in the gravitational potential energy of the book-Earth system during the drop? If the gravitational potential energy U of that system is taken to be zero at ground level, what is U (c) when the book is released and (d) when it reaches her hands? Now take U to be 100 J at ground level and again find (e) W₂. (f) AU, (g) U at the release point, and (h) U at her hands. (9 (1 I 1 D

You drop a 2.50 kg book to a friend who stands on the ground at distance D-10.0 m below. If your friend's outstretched hands are at distance d - 1.80 m above the ground (see the figure), (a) how much work W does the gravitational force do on the book as it drops to her hands? (b) What is the change AU in the gravitational potential energy of the book-Earth system during the drop? If the gravitational potential energy U of that system is taken to be zero at ground level, what is U (c) when the book is released and (d) when it reaches her hands? Now take U to be 100 J at ground level and again find (e) W₂. (f) AU, (g) U at the release point, and (h) U at her hands. (9 (1 I 1 D

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Description: You drop a 2.50 kg book to a friend who stands on the ground at distance D-10.0 m below. If your friend's outstretched hands are atdistance d - 1.80 m above the ground (see the figure), (a) how much work W does the gravitational force do on the book

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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Question

You drop a 2.50 kg book to a friend who stands on the ground at distance D-10.0 m below. If your friend's outstretched hands are at
distance d - 1.80 m above the ground (see the figure), (a) how much work W does the gravitational force do on the book as it drops to
her hands? (b) What is the change AU in the gravitational potential energy of the book-Earth system during the drop? If the
gravitational potential energy U of that system is taken to be zero at ground level, what is U (c) when the book is released and (d) when
it reaches her hands? Now take U to be 100 J at ground level and again find (e) W₂. (f) AU, (g) U at the release point, and (h) U at her
hands.
(9 (1
I
1
D

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