'''speed''' refers to the magnitude of the [[velocity]] of an object.
'''speed''' refers to the magnitude of the [[velocity]] of an object.
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Speed is the total [[distance]] traveled divided by the [[time]] it takes to travel it<ref>Serway and Beichner, ''Physics for Scientists and Engineers'', Fifth Edition</ref>.
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Speed is the total [[distance]] traveled divided by the [[time]] it takes to travel it.<ref>Serway and Beichner, ''Physics for Scientists and Engineers'', Fifth Edition</ref>