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A block of mass m slides down the plane ...

A block of mass m slides down the plane inclined at an angle `60^@` with an acceleration g/2. Find the co-efficient of kinetic friction.

A

0.01

B

0.05

C

0.03

D

0.06

Text Solution

Verified by Experts

The correct Answer is:
B
`a= v/t = 5/(10) = 0.5 ms^(-2)`
`F = ma = 2xx 0.5 = 1.5 N`
Co-efficient of friction `mu` = ?
`therefore muN = F`
`mu = F/N = F/(mg) = 1.5/(3xx10) = 0.05`
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