a large passenger ship weighs 75,000 tonnes and has a cruising speed of 45 km/h. the engines burn diesel fuel (approximately the same energy content as crude oil) with an efficiency of 20%. the drive system has an average efficiency of 55% for converting mechanical energy into propulsion for the ship. calculate the volume of fuel, in litres, needed to accelerate the ship from rest to cruising speed. the energy content of the fuel is 3.85×10^7 j/l.