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Kinematics of Rotational Motion

1. Homework Statement
A turntable that is initially at rest is set in
motion with a constant angular acceleration
α.
What is the magnitude of the angular ve-
locity of the turntable after it has made one
complete revolution?


2. Homework Equations
w(omega)^2 = w(omegeInitial)^2 +2α(delta)θ


3. The Attempt at a Solution
So then I used that because one revolution is equal to 2pi, I said w = sqrt. (4piα).
It is multiple choice and that is not one of the choices.
Here are the choices:
1. k~ωk = 2 π α
2. k~ωk = √2 π α
3. k~ωk = 2 α
4. k~ωk = 2√π α
5. k~ωk = √2 α
6. k~ωk = 4 π α
What am I doing wrong? Sorry if it is tough to read.
 

rock.freak667

Homework Helper
6,230
31
Not sure if you typed out the choices properly,but you can simplify you answer even more since √(ab) = (√a)*(√b)
 
Oh, I forgot to simplify, do it would be 2√π α
 
Yeah, thats what I meant. BTW, how do you type those symbols (I copy and pasted the symbols I could).
 

rock.freak667

Homework Helper
6,230
31
Yeah, thats what I meant. BTW, how do you type those symbols (I copy and pasted the symbols I could).
If you meant LaTex, in the reply box click on the [itex]\sum[/tex] symbol and you will get the list of symbols.
 

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