In a two body collision, momentum is always conserved.
To find the correct statement among all the options, we need to know about collision.
How many types of collision are there?
There are two types of collision.
- Elastic collision
- Elastic collisionInelastic collision
What are conserved in elastic collision?
In elastic collision, both energy and momentum are conserved.
What are conserved in inelastic collision?
- In inelastic collision, momentum is conserved but energy is not conserved.
- During this collision, energy is lost as heat energy or light energy or vibrational energy etc.
Thus, we can conclude that in any two body collision, momentum is conserved.
Learn more about collision here:
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