# Solve t=2π√l/g

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#1
Why is it that when you solve Solve t=2π√l/g you square both sides so the 2π to make tsqrd=4πsqrd ,but when it comes to getting rid of the fraction I thought its the same princicple so you do the same thing to both sides so multiply by G because you do the same to top and bottom but apparetly you just multiply the g by the t to give gt sqred=4 πsqred l? Why is this?
Thanks
0
4 years ago
#2
(Original post by wfisom)
Why is it that when you solve Solve t=2π√l/g you square both sides so the 2π to make tsqrd=4πsqrd ,but when it comes to getting rid of the fraction I thought its the same princicple so you do the same thing to both sides so multiply by G because you do the same to top and bottom but apparetly you just multiply the g by the t to give gt sqred=4 πsqred l? Why is this?
Thanks

If you square both sides you get

Are you happy with this part? It may be easier for us if you show all the working but make it clear which part you're unsure about.
0
4 years ago
#3
(Original post by notnek)
If you square both sides you get
Typo

EDIT: Never mind, I just assumed that he meant the pendulum time period equation, could be just . Looks too ambiguous

(Original post by wfisom)
Why is it that when you solve Solve t=2π√l/g you square both sides so the 2π to make tsqrd=4πsqrd ,but when it comes to getting rid of the fraction I thought its the same princicple so you do the same thing to both sides so multiply by G because you do the same to top and bottom but apparetly you just multiply the g by the t to give gt sqred=4 πsqred l? Why is this?
Thanks
Assume you meant

You have and if you square both sides you get

Then continue to solve for whatever you need to.
0
4 years ago
#4
(Original post by RDKGames)
Typo
Wasn't a typo, it looked like the OP only had a square root on the numerator.

But you're right - I should have assumed it was the pendulum formula.
0
1 month ago
#5
(Original post by Morgan Kurt)
Make x the subject T=2π√x/g
You have arrived just in time to save us all from confusion.
0
1 month ago
#6
(Original post by Plücker)
You have arrived just in time to save us all from confusion.
I've been waiting 4 years and now I can finally rest.
1
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