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The velocity in m/s of a particle is pro...

The velocity in m/s of a particle is proportional to the cube of the time. If the velocity after 2 s is 4m/s, then v is equal to

A

`t^(3)`

B

`(t^(3))/(2)`

C

`(t^(3))/(3)`

D

`(t^(3))/(4)`

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