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Angular acceleration problem 
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#1
Aug1811, 05:24 AM

P: 53

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 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 


#2
Aug1811, 05:38 AM

HW Helper
P: 6,202

Well you should know that α= 2ω^{2} means that dω/dt = 2ω^{2}
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. 


#3
Aug1811, 05:42 AM

P: 53

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



#4
Aug1811, 06:06 AM

P: 53

Angular acceleration problem
Someone please help me!!!!



#5
Aug1811, 08:32 AM

HW Helper
P: 6,202




#6
Aug1811, 09:55 AM

P: 53

Yes, that was my problem all along... I forgot to add the constant!! Thanks.



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