The mass of a spaceship is 1000 kg. it is to be launched from the earth’s surface out into free space. The value of ‘g’ and ‘R” (radius of earth) are 10 m/s2 and 6400 km respectively. The required energy for this work will be

Q: The mass of a spaceship is 1000 kg. it is to be launched from the earth’s surface out into free space. The value of ‘ g ‘ and ‘R’ (radius of earth) are 10 m/s2 and 6400 km respectively. The required energy for this work will be

(a) 6.4 × 1011 Joules

(b) 6.4 × 108 Joules

(c) 6.4 × 109 Joules

(d) 6.4 × 1010 Joules

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Ans: (d)