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A block of weight 200N is pulled along a...

A block of weight 200N is pulled along a rough horizontal surface at constant speed by a force of 100N acting at an angle `30^(@)` above the horizontal. The coefficient of kinetic friction between the block and the surface is

A

0.43

B

0.58

C

0.75

D

0.83

Text Solution

Verified by Experts

The correct Answer is:
B
`F cos theta=f_(k), f_(k)=mu_(k)N, N=mg-F sin theta`
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Knowledge Check

  • A wooden block of mass M resting on a rough horizontal surface is pulled with a force F at an angle  with the horizontal. If  is the coefficient of kinetic friction between the block and the surface, then acceleration of the block is -

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