Physics, 11.01.2020 03:31 klk597703

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. none of the forces act on the chair since. it is at rest. 2. all three forces. 3. 1 only. 4. 1 and 2 only. 5. 2 and 3 only.

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