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45 miles per second is about 800 times as fast as an Arrow (archery)
In other words, it's 807.60 times the speed of an Arrow (archery), and the speed of an Arrow (archery) is 0.001238 times that amount.
(250 g arrow fired from 60#/28" bow)
A 250 gram arrow will reach speeds of approximately 0.05572 miles per second when fired from a 60-lb, 28-inch draw bow . Archeological evidence from the Ahrensburg valley near Hamburg, Germany indicates that arrows have been used since at least 11 to 12,000 years ago.
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