Question

A moving bullet hits a solid target resting on a
frictionless surface and gets ombedded in it. What
is conserved in this process?
Option A:
Momentum and kinetic energy
Option B :
Momentum alone
Option :
Kinetic energy alone
Option :
Neither momentum nor kinetic energy
ans B ...reason?​

Answer 1

Answer:

Since the collision between bullet and target is perfectly inelastic in nature, so the momentum of the "bullet + target" system is conserved but the kinetic energy.

Answer 2

Answer:

Momentum alone. Since no external force is acting on the bullet+solid block system, thus linear momentum of the system is conserved. ... So, kinetic energy is not conserved as some kinetic energy is lost as heat in a perfectly inelastic collision.

Explanation: