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A boy rolls a rubber ball on a wooden surface. The ball travels a

short distance before coming to rest. To make the same ball travel
longer distance before coming to rest, he may
(a) spread a carpet on the wooden surface.
(b) cover the ball with a piece of cloth.
(c) sprinkle talcum powder on the wooden surface.
(d) sprinkle sand on the wooden surface.

Science - Exemplar Problems

Chapter 12. Friction


(c) sprinkle talcum powder on the wooden surface.
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The answer is:(c).................................
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