Momentum is a vector quantity, meaning it has both magnitude and direction. It is defined as the product of an object's mass (m) and its velocity (v).

Mathematically:

p = mv

where:

* p represents momentum

* m represents mass

* v represents velocity

Units:

The standard unit for momentum is kilogram meters per second (kg m/s).

Important Notes:

* Direction: Momentum's direction is the same as the object's velocity.

* Conservation of Momentum: In a closed system, the total momentum remains constant, meaning it is conserved. This principle is fundamental in physics, especially in collisions and explosions.