Final answer:
To cause an increase in acceleration, the net force applied to an object must increase, as per Newton's second law of motion (Fnet = ma).
Step-by-step explanation:
For an increase in acceleration, there must be an increase in the net force acting on an object according to Newton's second law of motion. This law states that the acceleration of an object is directly proportional to the net force and inversely proportional to its mass (Fnet = ma).
If we want to accelerate a package from an initial velocity (vo) to a final velocity (v), and its mass remains constant, the only way to achieve greater acceleration is by increasing the net force. This is because the kinetic energy of the package also increases, reflecting the positive net work done on the system. Additionally, when the force applied exceeds any frictional force, the leftover force contributes to the net force, resulting in the desired acceleration.