Textbook ExpertVerified Tutor
10 Nov 2021
Given information
Mary exerts an upward force of 
to hold a bag of groceries.
Step-by-step explanation
Step 1.
Newton's third law states that when two bodies interact, they exert forces that are equal in magnitude and opposite in direction. The third law is also known as the law of action and reaction.
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Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922