During a hockey match a forward shoots at goal and the ball is caught by the goalkeeper. When the ball hits the goalkeeper's glove it has a velocity of 42 m s-1. During the catch by the goalkeeper the force of the ball hitting the glove displaces the glove backwards by 22 cm after the ball has stopped moving. The mass of the hockey ball is 1 kg. Calculate: How much kinetic energy the ball posses immediately before it hits the glove. The work done by the goalkeeper when catching the ball. The impact force exerted by the goalkeeper's glove on the ball.

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