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

AcademicPhysicsNCERTClass 8

Spreading a talcum powder over a wooden surface would reduce friction so that the ball can travel a longer distance.

So, option $(c)$ is correct.

raja
Updated on 10-Oct-2022 13:29:10

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