What force does the water exert on the man. explain how far, Ask an Expert

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Q. An 84 kg man drops from rest on a diving board 3.4 m above the surface of the water and comes to rest 0.58 s after reaching the water. The acceleration due to gravity is 9.81 m/s2. What force does the water exert on the man? Answer in units of N.

Q. In a typical strike, the chameleon's tongue accelerates at a remarkable 250 m/s sqaured for 20 ms, then travels at constant speed for another 30 ms. During this total time of 50 ms, 1/20 of a second, how far does the tongue reach?

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