Question

In inelastic collision what is conserved
A.Kinetic energy
B.Momentum
C.Both A and B
D.None of the above

Answer 1

Hint: A collision is defined in physics as any occurrence in which two or more bodies exert forces on each other in a brief period of time. Although the most popular meaning of the word collision is an occurrence in which two or more objects crash violently, the scientific meaning of the phrase has nothing to do with the amount of force.

Complete answer:
In contrast to an elastic collision, an inelastic collision occurs when the kinetic energy is not preserved due to internal friction. When macroscopic things collide, some kinetic energy is converted into atomic vibrational energy, creating a heating effect and deformation of the bodies. Because kinetic energy is transferred between the molecules' translational motion and their internal degrees of freedom with each collision, completely elastic collisions between gas or liquid molecules are rare. At any given time, half of the collisions are inelastic (the pair has less kinetic energy after the collision than before), while the other half are “super-elastic” (the pair has more kinetic energy after the collision than before) (possessing more kinetic energy after the collision than before). Molecular collisions are elastic when averaged throughout an entire sample. Despite the fact that inelastic collisions do not save kinetic energy, they do conserve momentum. Only when the block swings to its greatest angle does the simple ballistic pendulum respect the conservation of kinetic energy. An inelastic collision occurs when an incoming particle causes the nucleus it collides with to get agitated or split apart.
Hence option B is correct.

Note:
When a system loses its greatest amount of kinetic energy, it is said to collide perfectly inelastically. The colliding particles cling together in a completely inelastic collision, which has a zero coefficient of restitution. Kinetic energy is wasted in such a collision because the two bodies are bonded together. This bonding energy generally results in the system's greatest kinetic energy loss. It is important to consider momentum conservation: Note that in the sliding block example above, the two-body system's momentum is only preserved if the surface is frictionless. The momentum of the two bodies is transmitted to the surface they are sliding on through friction.