1. Net Force: The greater the net force acting on an object, the greater its acceleration. This is described by Newton's Second Law of Motion: F = ma (Force equals mass times acceleration). A larger force will result in a larger acceleration, assuming the mass stays the same.
2. Mass: The more massive an object is, the less it will accelerate under a given force. Again, this is directly related to Newton's Second Law. If the force is constant, a larger mass will result in a smaller acceleration.
