1) A Hockey ball of mass 200g .travelling from west to east at 10m/sec is stuck by a hockey stick as a result , the ball gets turn back and now has a speed of 5m/sec . The ball and the hockey stick were in constant for 0.2 sec.
Solve the questions
1}Calculate the initial and final momentum of the ball.
2}State the direction of momentum in each case.
3}Calculate the rate of change of momentumof the ball.
4} What are the SIunits of momentum and rate of change of momentum.
5}Calculate the force exerted by the hockey stick on the ball and state it's direction.
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