A particle which is experiencing a force, given by $\overrightarrow{\mathrm{F}}=3\overrightarrow{\mathrm{i}}-12\overrightarrow{\mathrm{j}},$ 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 ?