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A horizontal force F is exerted on a 20 ...

A horizontal force F is exerted on a 20 kg block to push it up an inclined plane having an lnclination of 30º. The frictionalforce retarding the motion is 80 N. For the acceleration of the moving block to be zero, the force F must be-

A

206N

B

602N

C

620N

D

260N

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The correct Answer is:
A
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MOTION-MECHANICS-EXERCISE
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