Answer
$\dot{m} v=(M)(L)(T)^{-2}=F$
($N$=newton)
Work Step by Step
Unit of mass flow rate in MLT is $\left[M T^{-1}\right]$
Unit of velocity in MLT is $\left[\boldsymbol{L T} \boldsymbol{T}^{-\mathbf{1}}\right]$
$$
\begin{gathered}
\dot{m} v=\left(M \boldsymbol{T}^{-\mathbf{1}}\right)\left(L \boldsymbol{T}^{-\mathbf{1}}\right) \\
\dot{m} v=(M)(L)(T)^{-1-1} \\
\dot{m} v=(M)(L)(T)^{-2}=F
\end{gathered}
$$ Newton (N) is the SI unit of force.
