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U = mgh = mgl(1- cos A)
If l is longer, then A should be smaller???
-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
bounces@carnot.physics.buffalo.edu] On Behalf Of R. McDermott
Sent: Sunday, March 18, 2007 7:52 AM
To: Forum for Physics Educators
Subject: Re: [Phys-l] Queston: simple pendulum lengthen suspension.
Reading Jeff S' reply, the 'A' in the equation is 'theta', not
amplitude?
Always a danger to jumping into something in the middle; the word
'amplitude' used in conjunction with an equation with 'A' in it led me
astray. Sorry for my distracting response earlier. I agree
completely with
Jeff's analysis.
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