The product of an object's mass and velocity is its momentum.

Here's the breakdown:

* Mass: A measure of how much matter an object contains.

* Velocity: A measure of an object's speed and direction.

Momentum is a vector quantity, meaning it has both magnitude (amount) and direction. It represents the inertia of a moving object – its tendency to resist changes in its motion.

Formula:

Momentum (p) = mass (m) × velocity (v)

Units:

The standard unit of momentum is the kilogram-meter per second (kg·m/s).