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2 answers

A full rotation is once around the circumference or Pi*D, so 20*3.14159 or 61.83 m in 30 seconds so 122.66 m/min or 2.061 m/s

2007-02-05 02:52:45 · answer #1 · answered by Mike1942f 7 · 0 0

v = 2 pi R / T

2007-02-05 11:03:42 · answer #2 · answered by Rob S 3 · 0 0

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