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

Kipper

Physics

6 January, 20:42

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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Max Hudson · 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