Explanation Given: h A = 2400 km h B = 9600 km r A = 6370 km + 2400 km = 8770 km r B = 6370 km + 9600 km = 15 , 970 km Conservation of momentum: r A m v A = r B m v B v B = r A r B v A = 0.5492 v A … (1) Conservation of energy: T A = 1 2 m v A 2 V A = − G M m r A T B = 1 2 m v B 2 V B = − G M m r B G M = g R 2 = ( 9.81 m / s 2 ) ( 6370 × 10 3 m ) 2 G M = 398.1 × 10 12 m 3 / s 2 V A = − ( 398

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