You drop a 2.60 kg book to a friend who stands on the ground at distance D = 12.0 m below. If your friend's outstretched hands are at distance d = 1.50 m above the ground (see the figure), (a) how much work Wg 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) Wg, (f) AU, (g) U at the release point, and (h) U at her hands.

You drop a 2.60 kg book to a friend who stands on the ground at distance D = 12.0 m below. If your friend's outstretched hands are at distance d = 1.50 m above the ground (see the figure), (a) how much work Wg 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) Wg, (f) AU, (g) U at the release point, and (h) U at her hands.

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Description: need d,e,f,g,h You drop a 2.60 kg book to a friend who stands on the ground at distance D = 12.0 m below. If your friend's outstretched hands are atdistance d = 1.50 m above the ground (see the figure), (a) how much work Wg does the gravitational for

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

need d,e,f,g,h

You drop a 2.60 kg book to a friend who stands on the ground at distance D = 12.0 m below. If your friend's outstretched hands are at
distance d = 1.50 m above the ground (see the figure), (a) how much work Wg 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) Wg, (f) AU, (g) U at the release point, and (h) U at her
hands.
(a) Number 267
Units
J
(b) Number
-267
Units
J
(c) Number 305
Units
J
(d) Number i
!
Units
J
(e) Number i
Units
J
(f) Number i
Units
J
(g) Number i
Units
J
(h) Number
i
Units
J
>

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Step 1: Determine the given data:

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Step 2: d) Find potential energy when the book reaches hand:

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Step 3: e) Find W(g) considering potential energy at ground is 100 J:

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Step 4: f) Find change in potential energy when the PE at ground is 100 J:

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Step 5: g) Find U at the release point when the PE at ground is 100 J:

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Step 6: h) Find U at the hand when the PE at ground is 100 J:

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