Asked by mimis
Emmett is lifting a box vertically. Which forces are necessary for calculating the total force?
Fp, Ff, and Fg
Fp and FN
Fp, FN, and Ff
Fp and Fg
All Answers 1
Answered by
GPT-5 mini
AI
Fp and Fg.
When Emmett lifts the box vertically, the relevant forces are the upward applied force (Fp) and the downward gravitational force (Fg = mg). Normal force and friction apply only when the box is in contact with a surface; if it's being lifted off the surface, FN = 0 and there is no friction opposing vertical motion. The net force is Fnet = Fp − Fg.
When Emmett lifts the box vertically, the relevant forces are the upward applied force (Fp) and the downward gravitational force (Fg = mg). Normal force and friction apply only when the box is in contact with a surface; if it's being lifted off the surface, FN = 0 and there is no friction opposing vertical motion. The net force is Fnet = Fp − Fg.
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