question_answer 8)

The kinetic energy of an object of mass m moving with a velocity of 5 ms-1  is 25 J.   What will be its kinetic energy when its velocity is doubled? What will be its kinetic energy when its velocity increased three times?

Answer:

K.E. of an object = 25 J K.E. of the object with doubled velocity   K.E. of the object with tripled velocity