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A body of mass 10 kg is upon by a force ...

A body of mass 10 kg is upon by a force given by equation `F=(3t^(2)-30)` newtons. The initial velocity of the body is 10 m/s. The velocity of the body after 5 sec. is

A

4.5 m/s

B

6 m/s

C

7.5 m/s

D

5 m/s

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