# Angular acceleration problem

## Homework Statement

angular acceleration of line a= -2w^2 rad/s

what is angular velocity when theta= pi/3?

chain rule

## The Attempt at a Solution

w= e^-2theta is my answer, but I know this is wrong

I know that this question is really easy, but I just don't know how to get it

rock.freak667
Homework Helper
Well you should know that α= -2ω2 means that dω/dt = -2ω2

which is an easily solvable DE once you 'separate the variables' i.e. put all the things with ω on one side and t on the other then integrate both sides.

But then I end up with t=1/2w, how do I find the rest of the answer?