Physics, 08.10.2021 18:40 payshencec21

Review 83500 J

1. A 90.0 kg man climbs hand over hand up a rope to a height of 9.47 m. How

much potential energy does he have at the top?

2. A 50.0 kg shell was fired from a cannon at earth's surface to a maximum

height of 400. m.

a. What is the potential energy at maximum height?

b. It then fell to a height of 100. m. What was the loss of PE as it fell?

3. A person weighing 645 N climbs up a ladder to a height of 4.55 m.

a. What work does the person do?

b. What is the increase in gravitational potential energy?

c. Where does the energy come from to cause this increase in PE?

Answers: 1

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Review 83500 J

1. A 90.0 kg man climbs hand over hand up a rope to a height of 9.47 m....

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