Asked by Gaurav
Find the angular velocity of a body rotating with an acceleration of 2 rev/s square as it completes the 5th revolution after the start.
Answers
Answered by
drwls
I assume they want the angular velocity in radians/sec units.
After 5 revolutions, the angle turned is
A = 10 pi radians
The angular acceleration rate is
alpha = 4 pi radians/s^2
The time since starting is given by
A = (1/2)*alpha*t^2
t^2 = 2A/alpha = 5 sec^2
t = 2.236 s
w(at t = 2.236 s) = alpha*t = 28.1 rad/s
After 5 revolutions, the angle turned is
A = 10 pi radians
The angular acceleration rate is
alpha = 4 pi radians/s^2
The time since starting is given by
A = (1/2)*alpha*t^2
t^2 = 2A/alpha = 5 sec^2
t = 2.236 s
w(at t = 2.236 s) = alpha*t = 28.1 rad/s
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.