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A block placed on a horizontal surface i...

A block placed on a horizontal surface is being pushed by a force F making an angle `theta` with the vertical. The coefficient of friction between the block and surface is `mu` The force required to slide down the block with uniform velocity on the floor is

A

`(mumg)/(sintheta-mucostheta)`

B

`(sintheta-mucostheta)/(mumg)`

C

`mumg`

D

None of these

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The correct Answer is:
A
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MBD PUBLICATION-FRICTION-QUISTION BANK
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