The most appropriate unit for expressing the speed of a space rocket is?
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The most appropriate unit for expressing the speed of a space rocket is km/s
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Unit used to measure high speeds like that of a jet, Rocket, etc. is Mach scale.
Explanation:
Mach is the ratio of speed of an object to that of sound. So mach tells us that we are travelling at the speed of sound as the ratio would be unity. So rockets reach mach one in just minutes after liftoff. Mach scale was in honor to the Ernst Mach(physicist).
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