The problem:(adsbygoogle = window.adsbygoogle || []).push({});

L = 0.5. Pendulum of L is displaced angle of 0.1 rad and then released from rest. Determine resulting motion.

Ok, so I know it's going to be a second order DE of this kind which I will need to solve:

theta''(t) + (g/L)theta(t) = 0;

so theta(0) = 0.1? then what about theta'(t)(0)? is it just = 0? and what is it exactly anyway? if derivative is a rate of change with respect to time? rate of change of angle?

Thanks for any explanation/source.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Pendulum initial condtions

**Physics Forums | Science Articles, Homework Help, Discussion**