The product of a body's mass and its velocity is called momentum.

Here's the formula:

Momentum (p) = Mass (m) × Velocity (v)

Momentum is a vector quantity, meaning it has both magnitude and direction.

* Magnitude: The magnitude of momentum is the product of mass and speed.

* Direction: The direction of momentum is the same as the direction of the velocity.

Momentum is an important concept in physics, particularly in the study of collisions and conservation laws.