A turbo jet has a speed of 750 km/hr while flying at an altitude of 10000m. the 11 propulsive efficiency of the jet is 50% and the overall efficiency of the turbine plant is 16%. The density of the air at 10000m altitude is 0.173 kg/m. the drag on the plane is 6250 N. calorific value of the fuel is 48000 kj/kg. Calculate, i. Absolute velocity of the jet ii. Diameter of the jet and iii. Power output of the unit in kw.