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(20 Points) #3. Conservation of Momentum A 5kg ball strikes a wall with an initial speed 0=20m/s with an angle 0=53.1 with horizontal and rebounds

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(20 Points) \#3. Conservation of Momentum A 5kg ball strikes a wall with an initial speed 0=20m/s with an angle 0=53.1 with horizontal and rebounds with speed vf=10m/s at 0=36.9. The ball is contact with the wall only for 50ms. Find (13 Points) a) the impulse imparted to the ball (7 points) b) the average force exerted on the ball by the wall

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