volume_mute

Which two forces of the five indicated in the figure form the action-reaction pair of Newton's third law?

publish date: 2023/03/14 11:12:00 GMT+11

volume_mute

a = the downward force of the gravity on the banana

b = the upward force of the plate on the banana

c = the force of gravity on the plate

d = the downward force exerted by the banana on the plate

e = the force exerted upward on the plate by the table or floor

banana_on_plate.jpg

c and e
b and d
a and c
b and c

Correct Answer

b and d

Explanation

Although forces a and b are equal and are in opposite directions, they are not an action-reaction pair of Newton's third law.  Newton's law involves (1) the force one object exerts on a second and (2) the force the second object exerts on the first.

Reference

Basic Physics: A Self-Teaching Guide

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