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A weight W rests on a rough horizontal p...

A weight `W` rests on a rough horizontal plane,If the angle of friction is `theta`,the least force that can move the body along the plane will be

A

`W cos theta`

B

`W tan theta`

C

`W cot theta`

D

`W sin theta`

Text Solution

Verified by Experts

The correct Answer is:
D
`F=(mu_(s)mg)/(sqrt(mu_(s)^(2)+1)),mu_(s)=tan theta`
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