Question

A body of mass 5 kg is moving with a velocity of 10 m s-1. What will be the ratio of its initial kinetic energy and final kinetic energy, if the mass of the body is doubled and its velocity is halved ?​

Answer 1

Answer:

Initial mass = 5kg, Final mass = 10kg Initial velocity = 10ms-1, Final velocity = 10/2 = 5ms-1 Initial kinetic energy = 1/2mv2, Final kinetic energy = 1/2mv2 Read more on Sarthaks.com - https://www.sarthaks.com/285064/body-moving-with-velocity-10ms-what-will-ratio-initial-kinetic-energy-final-kinetic-energy