Dorian Gray
Junior Member
- Joined
- Jan 20, 2012
- Messages
- 143
Greetings Fellow Mathematicians,
I was wondering if somebody could please check my work for this problem.
A CD player has a speed of 5000 rpm when it is playing the CD. It takes 2.5 seconds for it to reach that speed. Assume constant rotational acceleration. What is the displacement of the CD player during those 2.5 seconds in a). Radians and b,) revolutions
(5000 rpm) X (2πr/60) = 523.60 rad/s is our final velocity
use theta=.5(omega i + omega f)(t)
theta=.5(0+523.60)(2.5)= 654.50 rad
Please let me know if it is correct, and if it is wrong, please give me suggestions on getting the correct answer.
Thanks!
I was wondering if somebody could please check my work for this problem.
A CD player has a speed of 5000 rpm when it is playing the CD. It takes 2.5 seconds for it to reach that speed. Assume constant rotational acceleration. What is the displacement of the CD player during those 2.5 seconds in a). Radians and b,) revolutions
(5000 rpm) X (2πr/60) = 523.60 rad/s is our final velocity
use theta=.5(omega i + omega f)(t)
theta=.5(0+523.60)(2.5)= 654.50 rad
Please let me know if it is correct, and if it is wrong, please give me suggestions on getting the correct answer.
Thanks!