Someone is standing on a scale inside an elevator. When the elevator is accelerating upward, the scale reads 850 N; when the elevator is accelerating downward at the same acceleration, the scale reads 800 N. Find the acceleration of the elevator, a = ? Find the mass of the pe

Someone is standing on a scale inside an elevator. When the elevator is accelerating upward, the scale reads 850 N; when the elevator is accelerating downward at the same acceleration, the scale reads 800 N. Find the acceleration of the elevator, a = ? Find the mass of the pe

Name: Someone is standing on a scale inside an elevator. When the elevator i
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Description: Someone is standing on a scale inside an elevator. When the elevator is accelerating upward, the scalereads 850 N; when the elevator is accelerating downward at the same acceleration, the scale reads 800N.Find the acceleration of the elevator, a = ?F

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter4: Forces In One Dimension

Section: Chapter Questions

Problem 6STP

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

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Someone is standing on a scale inside an elevator. When the elevator is accelerating upward, the scale
reads 850 N; when the elevator is accelerating downward at the same acceleration, the scale reads 800
N.
Find the acceleration of the elevator, a = ?
Find the mass of the person.
Find the weight of this person.

I know that Fn = mg + ma for upward and Fn = mg - ma for downward, but I am not sure how to find the middle ground that would be the acceleration?

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