Question

7.
Why a ball flows smoothly on a polished surface as compared to a rough
surface?​

Answer 1

Answer:

bcoz on a polished surface friction is not there while on the other side in the rough surface there is friction that is why the ball flows smoothly on a polished surface as compared to a rough

surface.

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Answer 2

Answer:

if the surface of an object is smooth, less friction is produced. For example, a ball rolls slowly and covers a lesser distance on a rough surface such as muddy playground. And obviously it means that to get the ball rolling, we have to apply a force which is greater than the frictional force offered by the ground.

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