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

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

A

`0.025`

B

`0.035`

C

`0.35`

D

`0.25`

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (COMPETITIVE THINKING)
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