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In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to
land hard on the floor. Suppose the victim falls by 0.30 m, the mass that moves downward is 68.0 kg, and the collision on
the floor lasts 0.0760 s. What are the magnitudes of the (a) impulse and (b) average force acting on the victim from the
floor during the collision?

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