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a 150 N force is used to pull a wooden box across a wooden surface at a constant velocity. what is the mass of the box?
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23 votes
23 votes
a 150 N force is used to pull a wooden box across a wooden surface at a constant velocity. what is the mass of the box?

User ITChap
by
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1 Answer

23 votes
23 votes

Answer:

The mass of the box:

m = 60 kg

Step-by-step explanation:

Given:

F = 150 N

g = 10 m/s²

_________

m - ?

Coefficient of friction wood on wood:

μ = 0.25

Friction force:

F₁ = μ*m*g

Newton's Third Law:

F = F₁

F = μ*m*g

The mass of the box:

m = F / ( μ*g) = 150 / (0.25*10) = 60 kg

User Romeo Sheshi
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2.8k points
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