Question

"The exact relationship for the period T of a simple pendulum is T=2*pi*sqrt_of(l/g) where l is the length of the pendulum, and g is the acceleration of gravity."

I have to rearrange the formula to where you solve for l instead of t. I started to try to do it, but I don't think I started off correctly. Does anybody know how to do this? Thanks!

Answer 1

T = 2 pi sqrt (L/g)
T^2 = 4 pi^2 L/g
g T^2 = 4 pi^2 L

L = g T^2 / (4 pi^2)

Answer 2

Oh, okay! See, I got the second step right, I just thought it was way off track. Thanks!