When you multiply an object's mass by its acceleration, you get its force. This is represented by Newton's Second Law of Motion:

Force (F) = Mass (m) x Acceleration (a)

Here's a breakdown:

* Mass: A measure of the amount of matter in an object. It's a fundamental property and remains constant.

* Acceleration: The rate of change of an object's velocity over time. It can be positive (speeding up), negative (slowing down), or zero (constant velocity).

* Force: The push or pull that causes a change in an object's motion. It is a vector quantity, meaning it has both magnitude (strength) and direction.

Example:

If you push a 10 kg box with a force that causes it to accelerate at 2 m/s², the force you are applying is:

F = m * a

F = 10 kg * 2 m/s²

F = 20 Newtons (N)