Question 664858
F= {{{((alpha)*m1*m2)/r^2}}}

Multiply both sides of the equation by r^2

{{{Fr^2}}}= {{{((alpha)*m1*m2*r^2)/r^2}}}


{{{Fr^2}}}= {{{((alpha)*m1*m2)}}}

Divide both side by F

{{{r^2}}}= {{{((alpha)*m1*m2)/F}}}

Take the square root of both sides

{{{r}}}= +/-{{{sqrt(((alpha)*m1*m2)/F)}}}

But r cannot be negative. So we take the positive root