Homework Help: Time period formula-proof required

1. Jan 30, 2010

IB1

Hello everyone, I'm new here, sorry if I make mistakes. My english is poor.

Prove that :
$$T=2\pi \sqrt{\frac{l}{g}}$$
where $$l$$ is length and $$g$$ is gravity

I hope you understand my question, else: I will try to write it again.
Thank you !

2. Jan 30, 2010

tiny-tim

Welcome to PF!

Hi IB1! Welcome to PF!

Show us what you've tried, and where you're stuck, and then we'll know how to help!

3. Jan 30, 2010

IB1

Thank you tiny-tim, It's nice joining this forum.

As for the problem: Well, I don't know even how to start proving this. I was first thinking for any trigonometric solution but I can not understand how the period can be independent from the angle. Hope you understand to which angle I refer.

It is not necessary to give an own proof, a link would be good enough.

Last edited: Jan 30, 2010
4. Jan 31, 2010

tiny-tim

Hi IB1!

(just got up :zzz: …)

It's difficult to know how to help without knowing how advanced your knowledge is …

which part of the course is this in (for example, have you done calculus)?

Maybe this will help … http://en.wikipedia.org/wiki/Pendulum" [Broken]

Last edited by a moderator: May 4, 2017
5. Jan 31, 2010

IB1

Thank you, the link was useful. You understood what I was asking :) . As for Calculus, yes -I know Calculus.

It Seems that I was right, the period is not very independent from the angle $$\theta$$ .