Question

define friction




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Answer 1

Answer:

Friction is the force exerted by the surface of an object when another object moves against it. Friction occurs in the direction opposite to motion, and because of this, it is a force that affects the motion of objects.

Explanation:

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Answer 2

Answer:

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.

Explanation:

si unit of friction is newton.

f = \mu N

f = friction force

\mu = coefficient of friction

N = normal force.

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