(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

You are standing on a bathroom scale inside an elevator. Your weight is 160 lb, but the reading of the scale is 123 lb.

(a) What is the magnitude and direction of the acceleration of the elevator?

??? m/s2

(b) Can you tell whether the elevator is speeding up or slowing down?

do not know

slowing down

speeding up

2. Relevant equations

weight=mg

ma=ma

3. The attempt at a solution

160lbs = 75.574kg

123lbs: 55.792kg

g= 9.8ms

obviously, the elevator is accelerating downwards, reducing his apparent weight.

his weight when on the ground is 740.625N.

So, 740.625=55.792a

a=13.27475. The question is asking for magnitude, but there is no x component so sqrt(a^2) would still be 13.27475

Obviously, this isnt correct. Can someone point me in the right direction?

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# Homework Help: Apparent weight on an elevator. Magnitude of its acceleration?

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