Depress mouse to view answer. Air Resistance is Present. Since the ball is moving relative to the surrounding air, there is an air resistance force on it. Consider the forces acting on the skydiver. Depress mouse to view answer.
Gravity is Present.
Since the skydiver has mass, there is a gravitational force on it. Depress mouse to view answer. Spring force is Absent. Since no spring is touching the skydiver, there is not a spring force on it. Depress mouse to view answer.