Which of the following bodies has the largest kinetic energy? All four of these

Question

Which of the following bodies has the largest kinetic energy? All four of these have the same kinetic energy. Mass M and speed 4V. Mass 3M and speed V. Mass2M and speed 3V Mass 3M and speed 2V. A projectile in flight explodes into several fragments. The total momentum of the fragments immediately after this explosion; Is the same as the momentum of the projectile immediately before the explosion. Is less than the momentum of the projectile immediately before the explosion. Has been changed into radiant energy. Is more than the momentum of the projectile immediately before the explosion. Has been changed into kinetic energy of the fragments.

Explanation / Answer

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