A body of mass 1 kg begins to move under the action of a time dependent force F =(t i +3 t^2 j ) N, where i and j are the unit vectors along x and y…

A body of mass $\displaystyle 1$ kg begins to move under the action of a time dependent force $\displaystyle \vec{F}=\left(t \hat{i}+3 t^2 \hat{j}\right) \mathrm{N}$, where $\displaystyle \hat{i}$ and $\displaystyle \hat{j}$ are the unit vectors along $\displaystyle x$ and y axis. The power developed by above force, at the time $\displaystyle \mathrm{t}=2 \mathrm{~s}$, will be $\displaystyle \_\_\_\_$ W.