Question

WHAT IS FORCE OF FRICTION?

Answer 1

The friction force is the force exerted by a surface as an object moves across it or makes an effort to move across it. There are at least two types of friction force - sliding and static friction. Though it is not always the case, the friction force often opposes the motion of an object.

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Answer 2

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The friction force is the force exerted by a surface as an object moves across it or makes an effort to move across it. There are at least two types of friction force - sliding and static friction. Though it is not always the case, the friction force often opposes the motion of an object.When an object rolls over a surface, the force needed to overcome rolling friction is much less than that needed to overcome sliding friction