Work Energy Problem: Calculate Fg and m in Constant Velocity Scenario

AI Thread Summary
The user calculates the applied force (Fapp) as 5398 N using the work-energy equation, where the work done equals the applied force times the distance. With a net force (Fnet) of zero due to constant velocity, they find the gravitational force (Fg) to be 5390 N. Using the equation Fg = mg, they determine the mass (m) to be 550 kg. The calculations and reasoning are confirmed as correct, affirming that the mass is indeed 550 kg.
TheRedDevil18
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Homework Statement



2cpyhpy.jpg


Homework Equations



W=F*delta x
Fg = mg

The Attempt at a Solution


I just want to know if my answer is correct for question 4.1.2:

W=Fapp*delta x
377860 = Fapp*70
Fapp = 5398N

Fnet = 0 (constant velocity)

Fnet = 0
5398-8-Fg=0
Fg = 5390

Fg = mg
5390 = m*9.8
m = 550kg

Correct ?
 
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So is everything correct and the mass is definitely 550kg ?
 
TheRedDevil18 said:
So is everything correct and the mass is definitely 550kg ?
Why sure, your work is good.
 

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