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an artificial satellite is moving in a circular orbit of radius 42250 km.calculate its speed if it takes 24 hours to revolve around the earth? |
Radius of the circular orbit = 42250 km Time taken by the satellite to revolve around the earth ,t=24h Speed of a circular moving object ,v = 2 ?r/t = 2 x 3.14 x 42250 24 x60 x60 = 3.07 km/s so the speed of the artificial satellite is 3.07km/s |