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A ball of mass 2kg is set in a straight line motion. It strikes a second,...

A ball of mass 2kg is set in a straight line motion. It strikes a second, stationary ball of mass 5kg. The velocity of the first ball, when it strikes the second ball is 20m/s. The first ball comes to a complete halt as a result of the collision. The two balls are in contact for 0.01 seconds.

Calculate the force applied to the second ball by the first ball.

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