The acceleration produced by an unbalanced force acting on an object is directly proportional to the force and inversely proportional to the object's mass. This is described by Newton's Second Law of Motion:

F = ma

Where:

* F is the net force acting on the object

* m is the mass of the object

* a is the acceleration of the object

In simpler terms:

* A larger force will produce a larger acceleration.

* A heavier object will have a smaller acceleration for the same force.

Example:

If you push a small cart with a certain force, it will accelerate faster than if you push a large, heavier truck with the same force. This is because the cart has less mass, so the same force will produce a larger acceleration.