A uniform disk rotates around a fixed axis beginning from rest and accelerating having constant angular acceleration. At one time it is rotating at around 10 rev/s. After completing 60 more complete revolutions its angular speed is around 15 rev/s.
i) Compute the angular acceleration
ii) The time needed to complete the 60 revolutions stated.
iii) The time needed to attain the 10 rev/s angular speed
iv) The number of revolutions from rest tilll the time the disk achieves the 10 rev/s angular speed.