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Question 30535
JEE Physics · Medium

Center of Mass, Momentum and Collision: Explosion — Energy Source MCQ

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Explosion — Energy SourceMediumQuestion 30535

Question

In an explosion of a body initially at rest, the total kinetic energy of the fragments comes from:
  1. A
    The kinetic energy of the body
  2. B
    External work done
  3. C
    Internal potential energy (chemical or nuclear)
    Correct
  4. D
    Gravitational PE

Correct answer

Internal potential energy (chemical or nuclear)

Explanation

The body at rest has zero KE. The explosion converts stored chemical or nuclear internal energy into kinetic energy of fragments.

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