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A particle of mass 6 kg moves accordings...

A particle of mass 6 kg moves accordings to the law `x=0.2 t^2-0.02 t^3`. Find the work done by the force in first 4 sec.

A

2.6428 J

B

1.2288 J

C

2.1334 J

D

1.1334 J

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The correct Answer is:
B
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