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keemosabi
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Homework Statement
A woman stands on a scale in a moving elevator. Her mass is 58.5 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9510 N. What does the scale read during the acceleration?
Homework Equations
Fnet = ma
The Attempt at a Solution
I found the acceleration of the entire elevator by doing 9510 - 815(9.8) = 1523. I divided this by 815 to get 1.8687. It is in the negative direction, so it is -1.8687 If this is the acceleration of the elevator, it must also be the acceleration of the person. As a result, I did Fnet = ma, Fnet = (58.5)(-1.8697) and got Fnet = 682.31895. I put 682.31895 as the what the scale reads but it says I got the answer wrong. What did I do incorrectly?