Here's why:
* Gravity: The primary force acting on the skydiver is gravity, which pulls them downwards.
* Air Resistance: As the skydiver falls, they experience air resistance, which acts upwards, opposing the motion.
* Net Force: Before terminal velocity, the force of gravity is stronger than the force of air resistance. This means there is a net force downwards, causing the skydiver to accelerate downwards.
Important Note: At terminal velocity, the forces of gravity and air resistance become equal in magnitude, resulting in zero net force and a constant velocity.