Apparent weight/elevator problem

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Homework Help Overview

The problem involves analyzing the apparent weight experienced by a person standing on a scale in an elevator, given a normal weight and a different reading on the scale. The subject area is dynamics, specifically relating to forces and acceleration in a non-inertial reference frame.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the forces acting on the person in the elevator and the application of Newton's second law. There are attempts to calculate the acceleration based on the scale reading and the normal weight.

Discussion Status

Some participants have provided guidance on breaking down the problem into steps, focusing on identifying forces and applying relevant equations. There is acknowledgment of progress in calculating acceleration, but questions remain regarding the interpretation of the elevator's velocity.

Contextual Notes

One participant mentions a personal challenge affecting their ability to think clearly, which may influence their engagement with the problem. The discussion reflects a mix of attempts and clarifications without reaching a final consensus on the velocity aspect.

stressedout09
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Homework Statement


As part of a physics experiment, you stand on a bathroom scale in an elevator. Though your normal weight is 610 N, the scale at the moment reads 760 N. Calculate the magnitude of the elevator's acceleration. What, if anything, can you say about the velocity of the elevator? Explain.


Homework Equations


Wa=m(g+a) maybe?


The Attempt at a Solution


760=62(12.2+a)
i know its not right and its driving me nuts -_- please help =(
 
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Do it step by step:
What forces act on you? What's the net force? What's your mass?
Apply Newton's 2nd law.
 
jeez -_- that was so easy LOL thank you so much for pointing me in the right direction...i have laryngitis so my mind isn't exactly functioning correctly =)
 
Doc Al said:
Do it step by step:
What forces act on you? What's the net force? What's your mass?
Apply Newton's 2nd law.

i figured out the acceleration...2.4 m/s^2 but i don't know how to answer this part...What, if anything, can you say about the velocity of the elevator? Explain.
 

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