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Elevators are Evil

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BrandyBoy72

Entry posted by BrandyBoy72 ·

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A friend of mine in AP physics 1 needed help on a web assign question in which a man's weight changed by .77 times after the elevator he was on started to accelerate. I explained to him how I would set up a system of equations where mg=weight(w) and the weight afterwards .77w=m(g+aelevator). And then set them equal: .77mg=m(g+a). m's cancel and then you solve for a getting a=2.254. A throw back to the test with that one SRQ with the guy pulling on the elevator, shows us that elevator problems plague physics students everywhere. But it also shows us that we are learning and we have at least made some progress in our physics careers.

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etracey99

It is awesome that you were able to help him. Imagine helping him later in the year with something like capacitance!

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krdavis18

I agree that elevators are evil. I had a dream once that I was in free fall inside an elevator. It was terrifying. 

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