Question

A ball on the smooth surface is rolling faster than a ball on the rough surface. why?

Answer 1

It is because the rough surface is having more friction that the smooth surface. A ball, rolls faster in a smooth surface because it is having less or no friction at all to stop it. In the other case, there is friction to stop the ball.


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Answer 2

A ball on the smooth surface is rolling faster than a ball on the rough surface because of following reasons:-

• Whenever one body moves over another or any surface then friction is working between the two surfaces.
• Friction always tries to stop the movement of the body.
• A rough surface has higher friction than a smooth surface, that's why a ball rolls faster on the smooth surface than on the rough surface.
• A smooth surface reduces friction whereas a rough surface increases friction.