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A block of mass 0.1 kg is held against a...

A block of mass 0.1 kg is held against a wall by applying a horizontal force of 5 N on the block. If the coefficient of friction between the block and the wall is 0.5, then the magnitude of the frictional force acting on the block is

A

`2.5N`

B

`0.98N`

C

`4.9N`

D

`0.49N`

Text Solution

Verified by Experts

The correct Answer is:
B
`f_(L)=mu_(s)R=0.5xx5`
`=2.5N`
`mg=0.1xx9.8=0.98N`
`:.` frictional force `(f_(s))=0.98N`
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