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Re: [Phys-l] Queston: simple pendulum lengthen suspension.



Potential energy relative to the bottom position is: U = MGH = MGL[1-cos(theta)] where theta is measured to the vertical. Amplitude: A = Lsin(theta). Increasing L results in increasing A. Where is the equation below coming from?

----- Original Message ----- From: "Bernard Cleyet" <bernardcleyet@redshift.com>
To: "Forum for Physics Educators" <phys-l@carnot.physics.buffalo.edu>
Sent: Saturday, March 17, 2007 11:52 PM
Subject: Re: [Phys-l] Queston: simple pendulum lengthen suspension.

<snip>
U = mgh = mgl(1- cos A)