A boy rolls a rubber ball on a wooden surface . the ball travel a short distance before coming to rest . to make the same ball travel longer distance before coming to rest he ,may .(A) sperad a dari on the wooden surface. (B) cover a ball with a piece of cloth. (C) sprinkle telcum powder on the wooden surface . Give reason.?
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11
I think your answer is A.
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4
Depending on your question the answer can be all 3.
For the first option if you could see dairy on the on the table the friction will be reduced and the ball will get to slide more and hence travelling more distance.
The second option spreading talcum powder on the table increases the ball moving ability as it decreases the fricction of the table.
For the third option putting a cloth around the ball will mean that the ball man stop the cloth will help the ball to travel more distance because the friction between the table and the ball is reduced.
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