Answer to Question #96413 in Physics for Nyx

Question

An empty office chair is at rest on a floor.
Consider the following forces:
1. A downward force due to gravity;
2. An upward force exerted by the floor; and
3. A net downward force exerted by the air.
Which force(s) act on the office chair?
1. 1 only
2. None of the forces act on the chair since
it is at rest.
3. All three forces
4. 2 and 3 only
5. 1 and 2 only

Answer 1

A downward force due to gravity and an upward force exerted by the floor act on the office chair.

Answer: 5. 1 and 2 only