Finding angular acceleration from revolutions and velocity

[hpthgpjo]

Homework Statement

an object starts from rest and has a final angular velocity of 6 rad/s. the object makes 2 complete revolutions. find the object's angular acceleration.

Homework Equations

wf^2=wi^2+2αd

The Attempt at a Solution

Not sure what to do with the revolutions, would it take act as the distance traveled? I am not given the radius, so the most I can do is:
6^2=0+2α(2rev*2π)
α=1.43rad/s^2
I'm not given the answer for this question so I am not sure if I am right or extremely wrong

 

[haruspex]

Homework Statement

an object starts from rest and has a final angular velocity of 6 rad/s. the object makes 2 complete revolutions. find the object's angular acceleration.

Homework Equations

wf^2=wi^2+2αd

The Attempt at a Solution

Not sure what to do with the revolutions, would it take act as the distance traveled? I am not given the radius, so the most I can do is:
6^2=0+2α(2rev*2π)
α=1.43rad/s^2
I'm not given the answer for this question so I am not sure if I am right or extremely wrong

Looks good.

 

[hpthgpjo]

alright thank you!