A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at8rev/s.60revolutions later, its angular speed is 19 rev/s.
(a) Calculate the angular acceleration.
(b) Calculate the time required to complete the 60 revolutions mentioned.
(c) Calculate the time required to attain the8rev/s angular speed.
(d) Calculate the number of revolutions from rest until the time the disk attained the 8 rev/s angular speed.