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A body of mass 1 kg begins to move under...

A body of mass 1 kg begins to move under the action of a time dependent force `F=(2that(i)+3t^(2)hat(j))N, "where" hat(i)and hat(j)` are unit vector along x and y axis. What power will be developed by the force at the time?

A

`(2t^2 + 3t^2)W`

B

`(2t^2 + 4t^4)W`

C

`(2t^3 + 3t^4)W`

D

`(2t^3 + 3t^5)W`

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