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A force of 25 N acts on a body at rest f...

A force of 25 N acts on a body at rest for 0.2s and a force of 70 N acts for the next 0.1 s in opposite direction. If the final velocity of the body is `5ms^(-1)`, the mass of the body is

A

1 kg

B

2 kg

C

0.8 kg

D

0.4 kg

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The correct Answer is:
D
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