The escape velocity for a rocket from Earth is $11.2 \ km/s$. Its value on a planet where the acceleration due to gravity is double that on the Earth and the diameter of the planet is twice that of Earth will be in $km/s$:

  • A
    $11.2$
  • B
    $5.6$
  • C
    $22.4$
  • D
    $53.6$

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