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A body of mass 3 kg is moving along a straight line with a velocity of 24ms-1 . When it is at a point 'P' a force of 9 N acts on the body in a direction opposite to its motion. The time after which it will be at 'P' again is,

a
8s
b
16s
c
12s
d
24s

detailed solution

Correct option is B

When it reaches the point ‘P’ again S=0,Using a=Fm;S=ut+12at2

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