What is Momentum?
Momentum = mass × velocity
It tells us how much motion an object has.
Unit: kg m/s
It’s a vector quantity – meaning it has both direction and size. Principle of Conservation of Momentum:
In a closed system (no external forces), total momentum before collision = total momentum after collision. Types of Collisions: Elastic: Momentum and kinetic energy both conserved Inelastic: Momentum is conserved, but some kinetic energy is lost as heat, sound, etc. How is Force...