# if theta is considered small in problems

by M. next
Tags: considered, theta
 P: 324 we know when theta is considered small enough, sin(theta) is approximately equal to theta. Ok, the question is what happens to theta dot(the time derivative of theta)?
 Mentor P: 10,501 If $\theta$ is small all the time, the time-derivative of $sin(\theta)$ is approximately the time-derivative of $\theta$.
 P: 324 thanks