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January 28, 2015

January 28, 2015

Posted by **Anonymous** on Sunday, July 11, 2010 at 8:20am.

- Physics -
**drwls**, Sunday, July 11, 2010 at 11:05amLet A be the pendulum angle, which vaires sinusoidally with time. R is the pendulam length

R sin A = X

Xm = 2.0 sin 25 = 0.845 m is the oscillation amplitude (measured horizontally)

X = Xm sin (w t)

is the equation of motion

w is the angular frequency

w = sqrt(g/R) = 2.21 rad/s

Vmax = w*Xm = 2.21 rad/s*0.845 m

= 1.87 m/s

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