Finding angular acceleration from revolutions and velocity

AI Thread Summary
To find the angular acceleration of an object starting from rest with a final angular velocity of 6 rad/s after completing 2 revolutions, the revolutions are treated as the distance traveled in angular terms. Using the equation wf^2 = wi^2 + 2αd, where d is the angular distance in radians (2 revolutions equals 4π radians), the calculation leads to α = 1.43 rad/s². The user expresses uncertainty about the correctness of this solution due to the lack of a provided answer. The discussion emphasizes the importance of correctly interpreting revolutions as angular distance in such calculations.
hpthgpjo
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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
 
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hpthgpjo said:

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.
 
alright thank you!
 
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