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A body of mass 20kg is moving on a rough...

A body of mass 20kg is moving on a rough horizontal plane. A block of mass 3kg is connected to the 20 kg mass by a string of negligible mass through a smooth pulley as shown in the figure. The tension in the string is 27 N. The coefficient of kinetic friction between the heavier mass and the surface is (g = 10m/`s^2`)

A

`0.025`

B

`0.035`

C

`0.35`

D

`0.25`

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The correct Answer is:
B
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