A change 3 coulomb is moving velocity $\overrightarrow{v}=(4 \hat i +3 \hat j) ms^{-1}$ in a magnetic field $\overrightarrow{B}=(4 \hat i +3 \hat j) wbm^{-2}$Find the force acting on the charge

Question

$\begin{array}{1 1} 0 \\ 25 \\ 5 \\ \pm 5 \end{array}$