An earth satellite of mass 700 kg is launched into a free-flight trajectory about the earth with an initial speed of vA = 10 km/s when the distance from the center of the earth is tA = 15 Mm. if the launch angle at this position is ǿ A= 70o, determine the speed vH of the satellite and its closest distance rB from the center of the earth. The earth has a mass Me= 5.976 (1024) kg. Hint: Under these conditions, the satellite is subjected only to the earth€™s gravitational force, F = GMems/r2, Eq. 13-1. For part of the solution, use the conservation of energy (see Prob. 14-97).

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YB 仆 A.