What is the escape velocity of a body on the surface of the earth of…

Physics WAEC 1995

What is the escape velocity of a body on the surface of the earth of radius R if the gravitational constant is G and the mass of the earth is M? (Neglect energy losses to the surroundings)

  • 2GR
  • 2G/R
  • 2GR2
  • 2GM/R checkmark

The correct answer is: D

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