Q7Multiple choice
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.
Show answer
(c) sprinkle talcum powder on the wooden surface.