Finding a period of a pendulum

[blueyedblonde]

Homework Statement

Find the period of a pendulum with a length of 35 cm.

Homework Equations

I know that you can find period with the equation my teacher gave me: T(period in sec)=1/f(frequency in hertz) but that doesn't have anything to do with cm. I'm clueless on what equation to use?

The Attempt at a Solution

I know I need to get 35cm to m so that's .35m. now i am stuck.

If someone could just give me a guideline and explain a little that would be nice. I don't exactly want an answer. I need to try that on my own.

Thank you!

 

[ap123]

Hello blueyedblonde

Try the formula here :
http://hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/pend.html

 

[That_bitch]

http://hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/pend.html

This URL was not found
This is useless!

 

[collinsmark]

Hello @That_bitch,

Welcome to PF!

This URL was not found
This is useless!

The responses in this thread date back to 2013. It's quite possible that the HyperPhysics website has been modified a little bit over the past 8 or 9 years. This thread has pretty much ended. So if you have a question, I would suggest starting a new thread.

If you're looking for simple pendulum formula yourself, you could just google "Pendulum formula." It works pretty well these days.

If you really want the one from the HyperPhysics web site, you could google
"pendulum formula site:hyperphysics.phy-astr.gsu.edu"

If you're studying physics, there's got to be a formula for simple pendulum in your coursework or textbook. So that's another source.

If you're familiar with differential equations and small angle approximations ($\sin \theta \approx \theta$ for small $\theta$) you could even derive the formula.