A submarine can be treated as an ellipsoid with a diameter of 5 m and a length of 25 m. Determine the power required for this submarine to cruise horizontally and steadily at 49 km/h in seawater whose density is 1025 kg/m3. Also determine the power required to tow this submarine in air whose density is 1.30 kg/m3. Assume the flow is turbulent in both cases. The drag coefficient for an ellipsoid is CD= 0.1. The flow is turbulent and the drag of the towing rope is negligible.The power required for the submarine to cruise in seawater is ...The power required to tow this submarine in air is...
