Of what law of motion is this statement an example an apple accelerates as it falls from a tree?

The statement is an example of 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. In this case, the force of gravity acts on the Apple, causing it to accelerate downward as it falls from the tree. The Apple's mass and the gravitational force together determine its rate of acceleration.