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A block of weight 100N is pushed by a fo...

A block of weight 100N is pushed by a force F on a horizontal rough plane moving with an acceleration `1 m//s^(2)`, when force is doubled its acceleration becomes `10m//s^(-2)`. The coefficient of friction is `(g=10m//s^(-2))`

A

0.4

B

0.6

C

0.5

D

0.8

Text Solution

Verified by Experts

The correct Answer is:
D
`F_(R)=F-f, f=mu_(k)mg`
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