question_answer 46)

                  A hockey player is moving northward and suddenly turns westward with the same speed to avoid all 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:

                  (c) Frictional force acts opposite to the direction of motion