Escape Velocity

  • Escape velocity is the minimum velocity that should be given to the body to enable it to escape from the gravitational field of the earth .
  • The energy given to the body to project it with the escape velocity is called escape energy. 
  • Escape velocity of earth is 11.2Km/sec
  • Valve of escape velocity does not depend on the mass of the projected body of, instead it depends on the mass and radius of the planet from which it is being projected. 
  • There are no atmsphere on the planets where root mean square velocity is more than the escape velocity. 
  • The value of escape velocity does not depend on the angle and direction of projection instead depends on density, mass and acceleration due to gravity of the planet. 

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