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A block of mass 2kg is kept on the floor...

A block of mass `2kg` is kept on the floor. The coefficient of static friction is `0.4` . If a force `F` of `2.5N` is applied on the block as shown in the figure, the frictional force between the block and the floor will be.

A

2.5N

B

5N

C

7.84 N

D

10 N

Text Solution

Verified by Experts

The correct Answer is:
A
`f_(s) = mu_(s) mg = 0.4 xx 2 xx 10 = 8 N`
Since , F = 2.5 N , F `lt f_(s)`
`f = 2.5 N`
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