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A block of 1 kg is stopped against a wal...

A block of 1 kg is stopped against a wall by applying a force F perpendicular to the wall. If `mu=0.2` then minimum value of F will be

A

980 N

B

49 N

C

98 N

D

490 N

Text Solution

Verified by Experts

The correct Answer is:
B
f = mg `implies mu N = mg`
`implies N = (1 xx 9.8)/(0.2) = 49 N`
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