Two stars of masses 3 × 1031 kg each and at distance 2 × 1011 m rotate in a plane about their common centre of mass O. A meteorite passes through O moving perpendicular to the star's rotation plane. In order to escape from the gravitational field of this double star, the minimum speed that meteorite should have at O is(Take, gravitational constant, G = 6.67 × 10-11 N-m2 kg-2)

Two stars of masses 3 × 1031 kg each and at distance 2 × 1011 m rota

1.	Two stars of masses 3 × 1031 kg each and at distance 2 × 1011 m rotate in a plane about their common centre of mass O. A meteorite passes through O moving perpendicular to the star's rotation plane. In order to escape from the gravitational field of this double star, the minimum speed that meteorite should have at O is(Take, gravitational constant, G = 6.67 × 10-11 N-m2 kg-2)
A.	2.8 × 105 m/s
B.	3.8 × 104 m/s
C.	2.4 × 104 m/s
D.	1.4 × 105 m/s
Answer» B. 3.8 × 104 m/s