Physics-
General
Easy

Question

If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2times that of the earth, the gravitational acceleration on the surface of that planet is

  1. 0.2 g    
  2. 0.4 g    
  3. 2g    
  4. 4g    

The correct answer is: 0.2 g

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