PHYSICS/KINETIC ENERGY/8,9,IO/SSC/NDA/DIPLOMA/RAILWAY/TATA STEEL & Others competitive exams.

Q) Calculate the kinetic energy (K.E.) of a car of mass 800 kg, moving with a velocity of
72 km/h. Find the new kinetic energy of the car. If 2 passengers each 50 kg sit in the car ??