Hey, I have a question where I needed to break out the variable m.
The formula was as following
e=mgh+mv^2/2 and I did it like this, first multiply by 2 to remove the 2 from the denominator so,
2e=2mgh+mv^2 then
2e-2mgh=mv^2
-2mgh=mv^2-2e
-2mgh-mv^2=-2e
m(-2gh-mv^2)=-2e
m = -2e/(-2gh-mv^2) and I'm wondering if this is an possible answer to the question? I have another method which is
e=mgh+mv^2/2
e=m(gh+v^2/2)
m=e/(gh+v^2/2)
and I'm wondering if both methods work, and if not, why?