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Q. A 53.0 kg person jumps from rest off a 8.0 m high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 3.00 m under the surface of the water. Determine the average force that the water exerts on the diver. This force is nonconservative.

Q. In a chase scene, a movie stuntman is supposed to run right off the flat roof of one city building and land on another roof 1.7m lower. If the gap between the buildings is 4.4 m wide, how fast must he run?

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