Please Help!! A phonograph turntable reaches its rated speed of 33 rpm after making 1.1 revolutions. What was ?
A phonograph turntable reaches its rated speed of 33 rpm after making 1.1 revolutions. What was its angular acceleration in radians/second^2?
m=mass x velocity x radius
I know that,
Angular Acceleration = Change in angular velocity / Elapsed Time
Having trouble plugging it all together 
Thanks guys!
w = (6.28 rad)(1.1 rev) / (33 rpm) = .2093 rad/min
Ar (Radial Acceleration) = w²r
The acceleration cannot be solved without a given radius! You forgot to give the radius, so to find the acceleration, just square (.2093 rad/min) and multiply it by the radius. If you tell me the radius I will do it for you.
: )