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Is the frictional force always acting in the opposite direction of motion?

Is the frictional force always acting in the opposite direction of motion?

Grade:12

2 Answers

Mujahid Ahmed
42 Points
10 years ago

NO

 

Friction force opposes the Relative Motion between the Contact Surfaces.

For Example, when you walk, Friction force is acting in the forward direction because it opposes the motion of Foot relative to ground ( Which is backward) .

 

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Ram Tiwari
10 Points
10 years ago

most of the times it acts opposite to the direction of "relative motion" but not always

plz approve if it helped :)

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