Question

calculate the kinetic energy of a car of mass 750 kg moving with a velocity of 72km/hr.find the kinetic energy if the velocity of the car becomes three times

Answer 1

here kinetic energy = 1/2mv^2
=1/2×750×(72)^2
=1/2×750×5284
=750×2642=1981500J
hope it's gonna help you buddy