connecting rod of 250 cm long and 5 cm diameter is connected with motor and 3 blade at other end. 3 phase electric motor gives 5 hp and 1500 rpm to the given object. Rotating object rotates at 1500 rpm then switched off the motor. after doing so how much time it takes to completely stops and how much revolution. linear velocity is 7.85 m/s and acceleration is 7.85 m/s^2. 3 blade radius is 63.5 cm. used material is Al6061. Take total mass of rotating object is 15.4 kg. 3 blade and rod are hollow type object that's why photo and given 15.4 kg may vary. But take total mass 15.4 kg. 3 blade mass is 8.4 kg and rod mass is 7 kg.