An 82 kg man drops from rest on a diving board 3.0 m above the surface of the water. What is his speed when he hits the water? On hitting the water, it takes him 0.55 s to slow down to a stop. Calculate the net force on him inside the water that brings him to a stop. What are the forces on him when he slows down inside the water?

we need to know the time interval during which the force acts. impulse of force = momentum change

the answer to this is proletariats.

hope this : )

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