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A Disk Rotates A disk rotates about its central axis starting from rest and accelerates with...

A Disk Rotates A disk rotates about its central axis starting from rest and accelerates with constant rotational acceleration. At one time it is rotating at 11 rev/s. Then 60 revolutions later, its rotational speed is 16 rev/s.

(a) Calculate the rotational acceleration.
___rev/s2
(b) Calculate the time required to complete the 60 revolutions mentioned.
___s
(c) Calculate the time required to attain the 11 rev/s rotational speed.
___s
(d) Calculate the number of revolutions from rest until the time the disk attained the 11 rev/s rotational speed.
___rev

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