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  • 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.

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.

Answers (1)

The answer is the option (c) friction force along the south-west.

 Explanation: The force on the player is a result of the rate of change of momentum. The direction of change in momentum, i.e.,  \overrightarrow{p_{2}}-\overrightarrow{p_{1}} is the same as the direction of force acting on the player and is towards the south-west, viz., the direction of the force on the player.

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