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Gravitation on Physics related Questions and Answers


Question :   The distance between centre of the earth and moon is 384000 km. If the mass of the earth is 6 × 1024 kg and G = 6.66 × 10-11 Nm2/kg2. The speed of the moon is nearly
1. 4 km/sec
2. 8 km/sec
3. 11.2 km/sec
4. 1 km/sec
Answer :   4 - 1 km/sec  

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