If you dropped a penny and a tennis ball from a hot air balloon, which would hit the ground first?
user
A tennis ball, but it's not 100% predictable.
assistant
Would it make a difference if the hot air balloon had a higher altitude?
user
The answer is yes, if the ball's speed is going to be constant and the ball has the same initial acceleration as the penny.
assistant
So it takes different times for them to reach their terminal velocities?
user
If you drop them simultaneously, yes.  If you dropped them one after the other, the tennis ball's terminal velocity is going to be smaller, so it's going to reach the ground first.
assistant
If you dropped a penny and a tennis ball from a hot air balloon, which would hit the ground first?
user
A tennis ball, but it's not 100% predictable.
assistant
Would it make a difference if the hot air balloon had a higher altitude?
user
The answer is yes, if the ball's speed is going to be constant and the ball has the same initial acceleration as the penny.
assistant
So it takes different times for them to reach their terminal velocities?
user
Yes, but it's more complicated than that, because the ball is bouncing around inside the balloon while it's falling, which isn't the same thing as an object falling in free space.
assistant
If you dropped a penny and a tennis ball from a hot air balloon, which would hit the ground first?