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  • 26-03-2024
  • Physics
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The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of Earth. The escape velocity of a body from this platform is kv, where v is its escape velocity from the surface of the earth. The value of k is
a.1/3
b.1/√2
c.1/2
d.√2

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