Question

A stunt-person is doing a Tarzan-like swing on a rope for a movie. She has a mass of 65.0 kg and the rope is 2.30 m long. She starts with the rope at an angle of 45.0 ∘ from the vertical and she starts from rest.

Part A

What is the gravitational potential energy of the stunt-person-and-Earth, compared with the potential energy when she is at the bottom of her swing?

Part B

How fast will she be moving at the bottom of the swing?

Part C

How much work does the tension in the ropes do as she swings from the initial position to the bottom?

Answer 1