A) the total kinetic energy is conserved
B) the total mechanical energy is not conserved
C) the linear momentum is not conserved
D) the linear momentum is conserved
Correct Answer: D
Solution :
In an inelastic collision, the particles do not regain their shape and size completely after collision. Some fraction of mechanical energy is retained by the colliding particles in the form of deformation potential energy. Thus, the kinetic energy of particles no longer remains conserved. However in the absence of external forces, law of conservation of linear momentum still holds good.
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