A particle which is experiencing a force, given by $\vec{F}=3 \vec{i}-12 \vec{j}$, undergoes a displacement of $\overrightarrow{\mathrm{d}}=4 \overrightarrow{\mathrm{i}}$. If the particle had a kinetic energy of 3 J at the beginning of the displacement, what is its kinetic energy at the end of the displacement?