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If the earth's radius is about 6375 km how fast must a satellite be moving if it is orbiting just above the earth's surface with a centripetal acceleration of 9.8ms2?
Wiki User
∙ 15y ago
centripetal acceleration is described by the formula a=(v^2)/r in terms of velocity sqr(ar) = v sqr(9.8*6375000) = v v = 7904 m/s or 2.8*10^4 km/h
Wiki User
∙ 15y ago
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