Elevator technique

You probably shouldn't try this, but if you do, I would recommend a tall building. Anyways, assume that you are at the top floor and heading down to the bottom. Anyways, if you were to jump while the elevator went down, if you timed your jump correctly, as the elevator starts to descend, you would appear to be floating in midair. Explain why this is so.

#Mechanics

Easy Math Editor

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`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
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Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$