What do you understand by the rolling friction ? Write an activity to show that rolling friction is less than the sliding friction?
Answers
Answer:
We have measured the force required to just make an object move over a surface. the frictional force measured between the two surfaces in maximum just before the block begins to move. the friction between two surfaces that are in contact and at rest is called static friction .
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sliding friction ,
continue pulling the block with the spring balance, so that it slides down at a steady speed the reading on the spring balaance is also steady and is slightly less than the reading for static friction. This is a measure of the sliding friction between two surfaces.
Rolling friction is the force of friction between two surfaces when one surface rolls over the other one .
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