The angular acceleration is given as a 300rads2. Picture shows the change in the direction of velocity. Angular acceleration is the rate of change of angular velocity with respect to time or we can write it as alpha fracdomega dt.
The initial angular velocity oi 480 rpm 480 revmin o i 480 r p m 480 r e v m i n The final angular velocity after a time interval of Dt 77 min D t 77 m i n is.
We know that the angular acceleration formula is as follows. If it takes the hard disk 78 s to reach this angular velocity starting from rest what is the average angular acceleration of. The angular acceleration is given as a 300rads2. A Do Dt Where a Average Angular Rotational Acceleration Do Change in Angular Speed Dt Change in Time Example An object with change in angular speed as 23 radians second and change in time as 11 s will have an average angular acceleration of.