1. The problem statement, all variables and given/known data A three phase cage rotor induction motor running at full load draws a stator current of 60A at a power factor of 0.8 lagging from a 415v, 50Hz Supply. Under the conditions the stator loss is 3.6kW, the rotor loss is 1.3kw and percentage slip is 4.5%. If the shaft power output is 29.4kW, calculate the shaft output torque, efficiency & mechanical friction and windage loss. 2. Relevant equations Torque = Force * distance 3. The attempt at a solution At first i tried using the power output 29.4kw to try to work out the torque but then realised that its not used for force. Now unfortunately this is were I'm stuck at, I really need help on this and I can't get my head around the question. I am uncertain of what formulas to use and would really appreciate it if someone could guide me and tell me which ones to use .