A 1.70-m tall person lifts a 2.50-kg book from theground so it is 2.40 m above the
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Question:
A 1.70-m tall person lifts a 2.50-kg book from theground so it is 2.40 m above the ground.
Part A
What is the potential energy of the book relative to theground?
Express your answer to three significant figures and include theappropriate units.
Part B
What is the potential energy of the book relative to the top ofthe person's head?
Express your answer to three significant figures and include theappropriate units.
Part C
How is the work done by the person related to the answers inparts A and B?
1. The work done by the person in lifting the book fromthe ground to the final height is the same as the answer to partA |
2. The work done by the person in lifting the book fromthe ground to the final height is the same as the answer to partB |
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