Posted by Anonymous on Sunday, July 11, 2010 at 8:20am.
A simple pendulum, 2.0 m in length, is released from rest when the support string is at an angle of 25 from the vertical. What is the speed of the suspended mass at the bottom of the swing?

Physics  drwls, Sunday, July 11, 2010 at 11:05am
Let 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
Answer This Question
Related Questions
 physics  energy question  A simple pendulum, 2.0 m in length, is released with...
 Physics  A pendulum is composed of a mass m suspended from the ceiling by a ...
 Physics!!!  Question: A(n) 3.17 m long pendulum is released from rest when the ...
 Physics  A particle of mass m = 3.04kg is suspended from a fixed point by a ...
 Physics  Consider the conical pendulum, a mass on the end of a string, with the...
 physics  suppose a simple pendulum was released from an angle of 58 degrees, ...
 Physics  The length of a simple pendulum is 0.72 m, the pendulum bob has a mass...
 Physics  A pendulum consists of a swinging mass hanging from a massless string...
 physicsURGENT  An 85 cm long pendulum with a 0.80 kg bob is released from rest ...
 Physics  A simple pendulum consists of a light rod of length L = 0.9 m anchored...
More Related Questions