SOLVE FOR U
Answer: u = sqrt (v^2 - (2E)/m))
To solve for u, you want to move everything else except u to the other side. I'd start by getting rid of the 1/2's by multiplying each side of the equation by 2:
2(E) = 2(1/2mv^2 - 1/2mu^2)
2E = mv^2-mu^2
Then, factor an "m" out of the two terms on the left side, so we get
2E = m(v^2-u^2)
Divide each side by m:
(2E)/m = (m(v^2 - u^2))/m
(2E)/m= v^2 - u^2
To get rid of the negative in front of the u^2, add u^2 to each side:
(2E)/m + u^2 = v^2
To get u^2 all alone, subtract (2E)/m from each side
u^2 = v^2 - (2E)/m
To isolate u, take the square root of each side
sqrt (u^2) = sqrt (v^2 -(2E)/m))
u = sqrt (v^2 - (2E)/m))
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?