A body of mass 200 g moves in a straight line in the positive-x direction with a speed of 25 m/s. It hits a wall and rebounds in the negative-x direction with a speed of 35 m/s. If the time of the force interaction is t = 2 s, find the magnitude of the average force exerted.
University of Ilorin PHY101 2026-test past question
- 6 N
- 12 N
- 60 N
- 120 N
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