1. The problem statement, all variables and given/known data

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

when theta=pi/6, w= 10 rad/s

what is angular velocity when theta= pi/3?

2. Relevant equations

chain rule

3. The attempt at a solution

dw/dtheta*dtheta/dt= dw/dtheta w = -2w^2

-1/2w dw= dtheta

-1/2*lnw = theta

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