SOLUTION: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation The given: tan (data) = v^2/gr Then I have to solve for v and r. I can't find explanations f

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation The given: tan (data) = v^2/gr Then I have to solve for v and r. I can't find explanations f      Log On

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Question 147973: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation
The given:
tan (data) = v^2/gr
Then I have to solve for v and r.
I can't find explanations for this lesson in the net.
Please help me.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
tan (theta) = v^2/gr
Then I have to solve for v and r.
-----------------------
Solving for "v":
Multiply both sides by gr to get:
gr*tan(theta) = v^2
Take the square root of both sides to get:
v = sqrt[gr*tan(theta)]
=========================
Solving for r:
Multiply both sides by gr to get:
gr*tan(theta) = v^2
Divide both sides by "gtan(theta)" to get:
r = v^2/[g*tan(theta)]
============================
Cheers,
Stan H.