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A small block of mass m is kept on a rou...

A small block of mass m is kept on a rough inclined surface of inclination `theta` fixed in an elevator. The elevator goes up with a uniform velocity v and te block does not slide n te wedge. The work done by the force of friction on the block in time t will be

A

zero

B

mgvt`cos^(2)theta`

C

mgvt`sin^(2)theta`

D

mgvt`sin^(2)theta`

Text Solution

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The correct Answer is:
C
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