Question

Which of the following is the reaction force to the gravita- tional force acting on your body as you sit in your desk chair? (a) The normal force ex- erted by the chair (b) The force you exert downward on the seat of the chair (c) Nei- ther of these forces.

Answer 1

answer (b) the force you exert downward on the seat of the chair.

Answer 2

Hey mate !

According to me


it's option (b)
The force you exert downward on the seat of the chair


reason :
relate to gravitational force of air