Question

which of the following forces is a contact force
Ⓐforce of gravity
Ⓑ magnetic force
Ⓒ force of friction Ⓓelectrostatic force​

Answer 1

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Ⓒ Force of friction ☑

Explanation

Frictional force is the force caused by the motion of two surfaces that come into contact with each other.

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Answer 2

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$\tt{(c) \: force \: of \: friction}$

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$\mathcal \green{ Radhe \: radhe}$