Question

Flag A 1900 kg hybrid automobile which operates on ethanol fuel is equipped with a multipurpose motor-generator- ywheel. When the vehicle slows or stops, 51% of the kinetic energy is recovered as electrical energy in the battery. When the IC engine is used to recharge the battery there is a 24% eciency of converting chemical energy in the fuel to electrical energy stored in the battery. The vehicle slows from 70 mph to 20 mph. Calculate: (A) Electrical energy recovered in the battery in [kJ] (B) Mass of fuel needed to store same amount of energy in the battery in [kg]

Answer 1

Answer:

688bn. hb kgv. bbbb. ._fvkcb.,'-%&_, g. klvin 6 vujb lop is 6867