When does a skydiver achieve terminal velocity?

Question

when gravity equals air resistance
when gravity is greater than air resistance
when air resistance acts on the diver and gravity does not
when gravity acts on the diver and air resistance does not

Answer 1

A skydiver achieves terminal velocity when gravity is equal to air resistance. In other words, when the force of gravity pulling the skydiver downwards is balanced by the force of air resistance pushing upwards. At this point, the skydiver stops accelerating and falls at a constant speed.