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Physics, 15.04.2020 16:12 fitzsimmonssheovgrbh

A ball whose mass is 0.4 kg hits the floor with a speed of 4 m/s and rebounds upward with a speed of 2 m/s. If the ball was in contact with the floor for 2 ms (2multiply10-3 s), what was the average magnitude of the force exerted on the ball by the floor?Favg = N. Calculate the magnitude of the gravitational force that the Earth exerts on the ball:mg = N

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