As you sit in your chair watching these lesctures, the force of gravity acts downward upon your body. The reaction force to the force of the Earth pulling you downward is ___. a) the force of the chair pushing you upward b) the force of the floor pushing your chair upward c) the force of the Earth pushing you upward d) the force of your body pulling the Earth upwards e) none, because gravity does not have a reaction force.

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter6: Applications Of Newton’s Laws Of Motion
Section6.4: Kinetic And Rolling Friction
Problem 6.7CE: What forces act on you as you walk across a room? Draw a free-body diagram showing all of them....
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As you sit in your chair watching these lesctures, the force of gravity acts downward upon your body. The reaction force to the force of the Earth pulling you downward is ___.

a) the force of the chair pushing you upward
b) the force of the floor pushing your chair upward
c) the force of the Earth pushing you upward
d) the force of your body pulling the Earth upwards
e) none, because gravity does not have a reaction force.

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