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If you mean the top speed by running or sprinting, the answer is 37.578288 kilometers per hour or 23.350065 miles per hour. This record was set by Usain Bolt in the 2009 Berlin World Championships.

If you are referring to the top speed of a manned aircraft, it would be the space shuttle, with the maximum speed of 17,320 miles per hour or 27,873.838 kilometers per hour.

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2010-07-06 19:13:06
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Q: What is the top speed of a human being?
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