Hockey ball of mass 200 gram travelling at 10 metre per second is struck by hockey stick. So as to return it along its original path with a velocity at 5 metre per second calculate the magnitude of change of momentum occurred in the motion of the hockey Ball by the force applied by the hockey stick.

Question

Physics

Wags

31 May, 11:54

Hockey ball of mass 200 gram travelling at 10 metre per second is struck by hockey stick. So as to return it along its original path with a velocity at 5 metre per second calculate the magnitude of change of momentum occurred in the motion of the hockey Ball by the force applied by the hockey stick.

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Cynthia Benton · Answer 1

3000gm/s

Explanation:

Mass = 200

v = 5

u = 10

Momentum = mass (v - u)

But because the ball is returning through the same path

Momentum = m (v + u)

Ft = 200 (5 + 10)

= 200 x 15

= 3000gm/s