Physics · Friction and Motion
While rolling a rubber ball over a flat tiled surface, what should be done to increase friction so that the ball travels only a short distance before coming to rest?
- 1Pour lubricating oil over the tiled surface
- 2Sprinkle fine talcum powder over the tiled surface
- 3Cover the tiled surface with a layer of sand and rocks✓
- 4Pour a thin layer of water over the tiled surface
Correct answer
Cover the tiled surface with a layer of sand and rocks
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