42. A woman stands on a scale in a moving elevator. Her mass is 60.0 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 9410 N. What does the scale read during the acceleration?

Sum of forces on elevator are

 

Solving for the acceleration

 

 

Now apparent weight is the normal force, so sum of forces on the woman are

 

Solving for N

 

 

 

 

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This page last updated on January 11, 2020