Question

Is friction a contact force

Answer 1

Answer:

yes

Explanation: Friction is a contact force when two surfaces interact. The second equation is the kinetic frictional force that is used when two surfaces are sliding against each other.

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Answer 2

Explanation:

Friction is a contact force when two surfaces interact. ... The static friction case is similar for when the two surfaces are stationary relative to each other. In static friction, the frictional force is whatever value it needs to be to prevent sliding up to some maximum value.