A body of mass $2 k g$ is moving on a smooth floor in straight line with a uniform velocity of $10 m / s$ . Resultant force acting on the body is:

20 N

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10 N

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2 N

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Zero

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Solution

The correct option is B Zero
Given
mass $= 2 k g$
velocity $= 10 m / s$
Then
acceleration $= 0 m / s^{2}$ (because initial velocity = final velocity)
Now as
$F o r c e = M a s s \times A c c e l e r a t i o n$
$=> F = 2 \times 0$
or Force $= 0$ Newton
Hence,
option $D$ is correct answer.

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