SOLUTION: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation The given: v^2=Vo^2+2as Then I have to solve for Vo, s and a. I can't find explanations for

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation The given: v^2=Vo^2+2as Then I have to solve for Vo, s and a. I can't find explanations for       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 147965: Pls. Help!!! I can't understand this lesson. It's called Formula Manipulation
The given:
v^2=Vo^2+2as
Then I have to solve for Vo, s and a.
I can't find explanations for this lesson in the net.
Please help me.
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve: v%5E2+=+V%5B0%5D%5E2%2B2as for V%5B0%5D, s, and a
To solve a formula for a particular variable means that you must rearrange (manipulate) the formula so that the variable in question is on one side of the = sign, and everything else is on the other side, by using the standard rules of algebra.
1) Solve for V%5B0%5D:
v%5E2+=+V%5B0%5D%5E2%2Bas subtract as from both sides.
v%5E2-as+=+V%5B0%5D%5E2 Now take the square root of both sides.
sqrt%28v%5E2-as%29+=+V%5B0%5D or V%5B0%5D+=+sqrt%28v%5E2-as%29
2) Solve for s:
v%5E2+=+V%5B0%5D%5E2%2Bas Subtract V%5B0%5D%5E2 from both sides.
v%5E2-V%5B0%5D%5E2+=+as Now divide both sides by a.
%28%28v%5E2-V%5B0%5D%5E2%29%29%2Fa+=+s or s+=+%28%28v%5E2-V%5B0%5D%5E2%29%29%2Fa
3) Solve for a:
v%5E2+=+V%5B0%5D%5E2%2Bas Subtract V%5B0%5D%5E2 from both sides.
v%5E2-V%5B0%5D%5E2+=+as Now divide both sides by s.
%28%28v%5E2-V%5B0%5D%5E2%29%29%2Fs+=+a or a+=+%28%28v%5E2-V%5B0%5D%5E2%29%29%2Fs