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<p>[QUOTE=&quot;KBBPLL, post: 26067528, member: 104064&quot;]According to various sources, a falling penny reaches terminal velocity in only 50 feet at around 25 mph. It has such low mass that it might sting a little but that&#039;s about it. You could have a friend drop them on you from a fourth floor balcony and report the results here. Of course, a single coin would flutter on the way down too. </p><p><br /></p><p>A roll of cents, 50x the mass, I&#039;m guessing might kill you. Assuming the coefficient of drag and cross-sectional area remained the same (big assumptions) terminal velocity would be 170 mph.[/QUOTE]</p><p><br /></p>

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