Consider two parachutists, a heavy person and a light person, who jump from the same altitude with parachutes of the same size.
1. Which person reaches terminal speed first?
2. Which person has the greater terminal speed?
3. Which person reaches the ground first?
4. If there were no air resistance, like on the Moon, how would your answers to these questions differ?
To answer these questions think of a coin and a feather falling in air.
1. Just as a feather reaches terminal speed very quickly, the lighter person reaches terminal speed first.
2. Just as a coin falls faster than a feather through air, the heavy person falls faster and reaches a terminal speed that is faster.
3. Just like the race between a falling coin and feather, the heavier person falls faster and will reach the ground first.
4. If there were no air resistance there would be no terminal speed at all. Both would be in free fall and hit the ground at the same time.