Just need some help rearranging this equation to make M the subject, thanks
v = sqrt 2kt / m
Start by squaring both sides.
sqrt v = sqrt 2kt / m
m = 2kt / v^2
I see two mistakes in what you did:
1. rock.freak667 said to square both sides (not take the square root of both sides).
2. He said to do it to both sides, not just the left side.
If the problem is v= sqrt(2kt/m) then, yes, start by squaring both sides to get rid of the square root.
If the problem is v= sqrt(2kt)/m, which is the way I first interpreted it, start by multiplying both sides by m.
Please use parentheses to make your meaning clear!
Separate names with a comma.