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January 27, 2015

January 27, 2015

Posted by **shasha** on Monday, March 14, 2011 at 8:03am.

the resistance is proportional to the velocity. Obtain the differential equation of its motion

and discuss the motion.

- differential equation -
**drwls**, Monday, March 14, 2011 at 8:13amML d^2è/dt^2 + k*L*dè/dt + Mg è = 0

or

d^2è/dt^2 + (k/M)*dè/dt + (g/L) è = 0

k is the damping constant of proportionality (force/velocity)

The solution is damped harmonic motion.

- differential equation -
**shasha**, Monday, March 14, 2011 at 8:52amis that true answer?

- differential equation -
**Rimple**, Sunday, July 1, 2012 at 1:40amd^2theta/dt^2 +(g/l)sin(theta)=0

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