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Relative Velocity

A body is mov...

Question

A body is moving with a uniform velocity of $2 m / s $ on a rough level surface. The frictional force on it is 10 N. If the body moves with velocity $4 m / s $ the force of friction will be

A

2 . 5 N

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B

5 N

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C

10 N

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D

20 N

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Solution

The correct option is D 20 N
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