A body is orbiting very close to the earth surface with kinetic energy KE. The energy required to completely escape from it is

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Q: A body is orbiting very close to the earth surface with kinetic energy KE. The energy required to completely escape from it is

(a) √2 KE

(b) KE

(c) KE / √2

(d) none of these

Click to See Answer :
Ans: (b)

 

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