Why do the passengers on a high-flying airplane not appear weightless, similar to the astronauts on the space station?

Why do the passengers on a high-flying airplane not appear weightless, similar to the astronauts on the space station?

Why do the astronauts aboard the space station appear to be weightless?

16. Why do the passengers on a high-flying airplane not appear weightless, similar to the astronauts on the space station?

17. A ranger needs to capture a monkey hanging on a tree branch. The ranger aims his dart gun directly at the monkey and fires the tranquilizer dart. However, the monkey lets go of the branch at exactly the same time as the ranger fires the dart. Will the monkey get hit or will it avoid the dart?