Is it true that friction opposes the motion between the surface in contact with each other?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
The frictional force prevents an object from moving about the surface with which it is in touch. However, the frictional force's direction could coincide with an object's motion. For instance, when we walk, our foot exerts force in the backward direction. Friction acts in the forward direction and moves us forward since it opposes the relative motion. Friction is a force that resists the relative motion between two objects or materials. The causes of this resistive force are molecular adhesion, surface roughness, and deformations.

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