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If m=20 kg, mu(s)=0.5, find friction on ...

If `m=20 kg, mu_(s)=0.5`, find friction on block.

A

60 N

B

70 N

C

100 N

D

80 N

Text Solution

Verified by Experts

The correct Answer is:
A
`V=sqrt(gRtantheta)implies (20)^(2)=10xx100xxtan thetaimpliestan theta=(4)/(10)=(2)/(5)implies theta=tan^(-1)(2//5)`
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VIBRANT-REVIEW TEST-PART - II : PHYSICS
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