Final answer:
Gravity acting on a force to bring it to the ground is an example of Newton's 2nd Law of Motion.
Step-by-step explanation:
The example you provided, of gravity acting on a force and bringing it to the ground, is an illustration of Newton's 2nd Law of Motion. Newton's 2nd Law states that the force acting on an object is directly proportional to its mass and acceleration. In this case, the force of gravity (which depends on the mass of the object) causes the acceleration of the object towards the ground.
Learn more about Newton's 2nd Law of Motion