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A rectangular block of mass 5 kg is kept...

A rectangular block of mass 5 kg is kept on a horizontal surface . The coefficient of friction between the block and the surface is `0.2` . If a force of 20 N is applied to the block at angle of `30^(@)` with the horizontal plane , what is the force of friction on the block ? (Take g = `10 m//s^(2)`)

A

5 N

B

10 N

C

12 N

D

20 N

Text Solution

Verified by Experts

The correct Answer is:
C

`N = (Mg - F sin 30^(@))`
`f = mu N`
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GRB PUBLICATION-FRICTION AND CIRCULAR MOTION -OBJECTIVE QUESTIONS ( only one choice is correct )
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