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posted by Ang on Sunday, September 16, 2012 at 1:41pm.
meteoroid is speeding through the atmosphere, traveling east at 17.0 km/s while descending at a rate of 11.7 km/s. What is its speed, in km/s?
v=√(v⒳² +v⒴²) = =√(17²+11.7²) =20.64 km/s
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