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NEETPhysicsCenter of Mass, Momentum and Collision

Assertion (A): In inelastic collision, a part of kinetic energy convert into heat energy, sound energy and light energy etc. Reason (R): The force of interaction in an inelastic collision is non-conservative in nature.

Options

  1. AAssertion (A) is True, Reason (R) is True; Reason (R) is a correct explanation for Assertion (A)
  2. BAssertion (A) is True, Reason (R) is True; Reason (R) is not a correct explanation for Assertion (A)
  3. CAssertion (A) is True, Reason (R) is False.
  4. DAssertion (A) is False, Reason (R) is True.

Correct answer

B. Assertion (A) is True, Reason (R) is True; Reason (R) is not a correct explanation for Assertion (A)

Step-by-step solution

- Assertion (A) is True. In an inelastic collision, total momentum is conserved but total kinetic energy of the system decreases because some of it is transformed into other forms (heat, sound, internal energy due to deformation). - Reason (R) is True. The contact/deformation forces during an inelastic collision include non-conservative components (e.g., frictional and internal dissipative forces), so mechanical energy is not conserved. - However, R is not the correct explanation for A in the strict assertion-reaso

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