Answer :
When Emmett is lifting a box vertically, the forces that must be added to calculate the total force are: the gravitational force, tension force(the force exerted by Emmett to the box and the force exerted by the box to Emmett), and air resistance force.
Answer:
the answer is actually D. [tex]F_{p}[/tex] and [tex]F_{g}[/tex]
Explanation:
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