Question

Which one of the following is the correct statement?

• A. In inelastic collisions, both momentum and kinetic energy are conserved
• B. In inelastic collisions, momentum is conserved and kinetic energy is not conserved
• C. In elastic collisions, momentum is conserved and kinetic energy is not conserved
• D. In inelastic collisions, momentum is not conserved and kinetic energy is conserved
• E. In elastic collisions, momentum is not conserved and kinetic energy is conserved

Answer 1

The Correct Option is B

In an inelastic collision, the total momentum of the system is conserved, but the kinetic energy is not conserved. Some of the kinetic energy is converted into other forms of energy, such as heat, sound, or deformation. This is in contrast to an elastic collision, where both momentum and kinetic energy are conserved.
Therefore, the correct statement is that in inelastic collisions, momentum is conserved but kinetic energy is not.

The correct option is (B) : In inelastic collisions, momentum is conserved and kinetic energy is not conserved.

Answer 2

In any collision, the total momentum of the system is always conserved, provided there is no external force acting on the system. However, kinetic energy may or may not be conserved depending on the type of collision. 

- In an inelastic collision, momentum is conserved but kinetic energy is not conserved. Some of the kinetic energy is converted into other forms like heat, sound, or deformation. 
- In an elastic collision, both momentum and kinetic energy are conserved. 

Therefore, the correct statement is:  

Answer: In inelastic collisions, momentum is conserved and kinetic energy is not conserved