Physics
General
Easy

Question

Let g be the acceleration due to gravity at earth's surface and k be the rotational K.E of earth suppose the earth's radius decreases by 2% keeping alt other quantities same then

  1. g decreases by 2% and K decreases by 4%
  2. g decreases by 4% and k increases by 2%
  3. g increases by 4% and K increases by 4%
  4. g decreases by 4% and K increases by 4%

The correct answer is: g increases by 4% and K increases by 4%

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