Answer :
It is given in the question that, the equation is
[tex]p = mv[/tex]
And we have to solve for v .
To solve for v, we need to get rid of m. And move it to left side .
To get rid of m, we have to divide both sides by m, that is
[tex]\frac{p}{m} = \frac{mv}{m} \\ v = \frac{p}{m}[/tex]
Correct option is the second option .