The fly wheel of a large motorin a factory has mass 30kg and moment of inertia `67.5 kg-m^(2)` about its rotation axis. The motor develops a constanttorque of 600N-m, and the fly wheel starts from rest, (a) What is the angular acceleration of the fly wheel ? (b) What is its angular velocity after making 4 revolutions ? (c) How much work is done by the motor during the first 4 revolutions ? (d) What is the average power output ofthe motor during the first 4 revolutions ?

Answer

`"["(a)8.88 rad//s^(2) (b)21.2 rad//sec (c) 6.325 kW"]"`