Problem: A 1.75 m tall person lifts a 1.65 kg book off the ground so it is 2.15 m above the ground.(a) What is the potential energy of the book relative to the ground?(b) What is the potential energy of the book relative to the top of the persons head(c) How is the work done by the person related to the answers in parts A and B?

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A 1.75 m tall person lifts a 1.65 kg book off the ground so it is 2.15 m above the ground.
(a) What is the potential energy of the book relative to the ground?
(b) What is the potential energy of the book relative to the top of the persons head
(c) How is the work done by the person related to the answers in parts A and B?

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Based on our data, we think this problem is relevant for Professor Ritz's class at UCI.