Q. 6

A hockey player is moving northward and suddenly turns westward with the same speed to avoid an opponent. The force that acts on the player is
A. frictional force along westward.

B. muscle force along southward.

C. frictional force along south-west.

D. muscle force along south-west.

Answer :

As we know rate of change of momentum is force . So in this case direction of force acting on player will be the same as the direction of change in momentum. Now to understand this in better let’s look the image below


& shows player’s northward and westward directions respectively. Now shows south direction so is towards south-west which means force on player will act on this direction.


Therefore, option (c) is correct.

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