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A block of mass 0.1kg is belt againest a...

A block of mass `0.1kg` is belt againest a wall appliying a horizontal force of `5N` on the block .If the coefficient of friction between the block and the wall is `0.5` the magnitude of the friction force acting on the block is

A

2.5 N

B

0.98 N

C

4.9 N

D

0.49 N

Text Solution

Verified by Experts

The correct Answer is:
B
(b) N=F=5N lt brgt `therefore" " f_("max")=mu N=2.5 N`
`w=mg=0.1xx9.8=0.98N`
Since `w lt f_("max")`, force of friction will be 0.98 N
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