Question

A hockey ball of mass 200 g travelling at 10 ms is stuck by a hockey stick so as to return it along its original path with a velocity of 5 ms .Calculate the change in momentum occurred in the motion of the ball by the force applied by the hockey stick ​

Answer 1

Answer:

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Answer 2

Answer:

Initial momentum = Mass × Initial speed

⇒            

⇒

Final momentum = Mass × Final Speed

⇒

⇒

Then,

Change of Momentum = Final momentum - Initial momentum

⇒ 2 – (–1)

⇒ 2 + 1

= - 3 kg m/s

Hence, the change in momentum of the hockey ball is 3 kg m/s

Here, Minus sign means the balls starting moving in opposite direction.

Explanation:-

Momentum  is the product of the mass and the velocity of an object or particle. It is a vector quantity. It is the property that a moving object has due to its mass and its motion.