Question

Emmett is lifting a box vertically. Which forces are necessary for calculating the total force?

Answer 1

the answer is actually D.
`F_(p)` and
`F_(g)`

Step-by-step explanation:

hope this helps :)

Answer 2

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.