Physics
General
Easy

Question

If g is the acceleration due to gravity at the earth's surface and r is the radius of the earth, the escape velocity for the body to escape out of earth's gravitational field is……..

  1. gr
  2. square root of 2 g r end root
  3. g/r
  4. r/g

The correct answer is: square root of 2 g r end root

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