大家好,歡迎來到Yogi霸霸解題給你看,今天我要講解的是AP Physics C裡Rotation的作業。

A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 11 rev/s. 55 revolutions later, its angular speed is 18 rev/s.

(a) Calculate the angular acceleration.

(b) Calculate the time required to complete the 55 revolutions mentioned.

(c) Calculate the time required to attain the 11 rev/s angular speed

(d) Calculate the number of revolutions from rest until the time the disk attained the 11 rev/s angular speed.