CBSE Class 8 Answered
a surface is rubbed to make it smoother .what effet will this have on frition ?givereason
Asked by ibi.mohammed | 22 May, 2017, 05:02: PM
Expert Answer
- Friction force resists the state of motion of a body by exerting a force opposite to the direction of the motion.
- This force is generally exerted by the surface or medium in which a body moves.
- Incase of a surface, the frictional force is strong when the surface is rough.
- And it is less when the surface on which the moving body is in contact with is smooth.
- So when a surface is rubbed to make it smoother, the frictional force exerted by that surface on any body which moves on it is decreased.
- This makes the motion of that body much easier on such a smooth surface.
Answered by Abhijeet Mishra | 23 May, 2017, 09:38: AM
Application Videos
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MethodstoIncreaseFriction
This video descibes the ways to increase the friction -
Methods to reduce Friction
This video describes the ways to reduce the friction.
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