To determine a) Change in potential energy of hiker. b) Minimum work required of the hiker. c) The difference in work. Explanation Given: Mass of hiker, m = 66.5 kg The height of peak is, h f = 2660 m Initial height, h i = 1270 m Formula Used: Change Potential energy is given by Δ P E = P E f i n a l − P E i n i t i a l Δ P E = m g h f − m g h i Δ P E = m g ( h f − h i ) Where, m is mass of the hiker, g is the acceleration due to gravity h f isthe height of the peak, h i is the initial height. Calculations: a)Substitute these values in above equation and solve for change in potential energy Δ P E = m g ( h f − h i ) Δ P E = 66

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ISBN: 2818440037979

Author: GIANCOLI

Publisher: PEARSON

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Chapter 6, Problem 29P

To determine

a) Change in potential energy of hiker.

b) Minimum work required of the hiker.

c) The difference in work.

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Chapter 6, Problem 28P

Chapter 6, Problem 30P

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Chapter 6 Solutions

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