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.27. A satellite orbits around the earth at aheight equal to R of the earth. Find itsperiod. [R 6.4 x 10° m, g 9.8 m/s1olution:

Answer»

Gravitational force = centripetal force G M m / d² = m v² / d v² = G M / d = g R² / d v = R √(g/d)

ω = angular velocity = v / R = √(g/d) T = time period = 2π/ ω = 2 π √(g/d)



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