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6. Four people are trying to help push and lift a refrigerator up a series of stairs. Jim pushes
with a force of 60 N. Aaron lifts with a force of 200 N. Reginald pushes with a force of 210 N,
and Archer lifts with a force of 95 N.

Respuesta :

Answer:

Net force due to all on the refrigerator is 400 N

Explanation:

As we know that two people are pushing the refrigerator while other two people are lifting the refrigerator

So net push force on the refrigerator is given as

[tex]F = F_1 + F_2[/tex]

[tex]F = 60 + 210[/tex]

[tex]F_1 = 270 N[/tex]

Similarly net lift force on the refrigerator is given as

[tex]F = F_1' + F_2'[/tex]

[tex]F = 200 + 95[/tex]

[tex]F_2 = 295 N[/tex]

Now net force on the refrigerator is given as

[tex]F_{net} =\sqrt{F_1^2 + F_2^2}[/tex]

[tex]F_{net} = \sqrt{270^2 + 295^2}[/tex]

[tex]F_{net} = 400 N[/tex]

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