A body of mass 3 kg under constant force which causes a displacement $s$ in meters in it given by $s=\large\frac{1}{3}$$t^2$ work done by the force in $2$ seconds is

Question

\[(a)\;\frac{8}{3}\;J\quad (b)\;\frac{19}{5}\;J \quad (c)\; \frac{5}{19}\;J \quad (d)\;\frac{3}{8}\;J\]