Q137 / 150 · MHT CET 2022 (07 Aug Shift 2) · Physics

A bullet is fired from the gun. It hits the solid block resting on a frictionless surface, gets embedded into it and both move jointly. In this process,

  • A
    Both momentum and kinetic energy are not conserved.
  • B
    Only kinetic energy is conserved.
  • C
    Bot the momentum and kinetic energy are conserved.
  • Correct answer
    D
    Only momentum is conserved.

Solution

Concept based. This is a case of a perfectly inelastic collision in which linear momentum is conserved but kinetic energy is not conserved.

Hence, the correct answer is option: 'D'.

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