* Weight is the force of gravity pulling the skydiver downwards.
* Drag is the force of air resistance pushing against the skydiver upwards.
At terminal velocity:
* The skydiver is no longer accelerating.
* The force of gravity (weight) is balanced by the force of air resistance (drag).
* Since the forces are equal and opposite, they cancel each other out, resulting in a constant velocity.
Think of it like this:
Imagine you're pushing a box across a floor. The harder you push (force), the faster the box moves (acceleration). But the rougher the floor (friction), the more it resists the movement. When the force you apply is equal to the friction force, the box moves at a constant speed.
It's the same principle with a skydiver. The force of gravity pulls them down, while air resistance pushes them up. At terminal velocity, these two forces balance out, and the skydiver falls at a constant speed.