A body of mass 2 kg is kept by pressing ...

A body of mass 2 kg is kept by pressing to a vertical wall by a force of 100 N . The coefficient of friction between wall and body is 0.3. Then the frictional force is equal to

20 N

600N

700N

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The correct Answer is:

Fom the given condition, static friction
=applied from=weight of body
`=2xx10`
=20N

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