Question:
a hockey ball of mass 0.2 kg travelling at a velocity of 10 M per second is struck by a hockey stick so as to return if along its original path with a velocity of 21 km per hour if the terie of contact is 0.08 second what is the force applied?
Answer:
1) First calculate change in momentum
If you need help you can refer to Question no. 7 of this video - https://youtu.be/Rj6EW91Vk0U
2) Change in momentum = Impulse
Impulse = Force x time
Force = Impulse/time
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