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

This is derived from Newton's Second Law of Motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Here's what the variables mean:

* Force (F): The push or pull on an object. Measured in Newtons (N).

* Mass (m): The amount of matter in an object. Measured in kilograms (kg).

* Acceleration (a): The rate of change of velocity of an object. Measured in meters per second squared (m/s²).

Example:

If a 10 kg object is accelerating at 2 m/s², then the force acting on it is:

F = m x a

F = 10 kg x 2 m/s²

F = 20 N

Important Notes:

* This formula applies only to objects with constant mass.

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

* The formula assumes that the net force acting on the object is in the direction of the acceleration.