During a flyby of the earth, the velocity of a spacecraft is 10.4 × 103 m/s as it reaches...

During a flyby of the earth, the velocity of a spacecraft is 10.4 × 103 m/s as it reaches its minimum altitude of 960 km above the surface at point A. At point B the spacecraft is observed to have an altitude of 5300 km. Assuming that the trajectory of the spacecraft is parabolic, determine its velocity at B.