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AP EAMCET201823 Apr 2018Evening ShiftPhysicsGravitationActual

Two bodies of equal masses are some distance apart. If 20 % of mass is transferred from the first body to the second body, then the gravitational force between them

Options

  1. Aincrease by 4 %
  2. Bincrease by 14 %
  3. Cdecreases by 4 %
  4. Ddecreases by 14 %

Correct answer

C. decreases by 4 %

Step-by-step solution

(c) Initially force, F₁= G m^2 r^2 When 20 % mass is transferred from one body to another, then their masses are m₁= 80 100 m and m₂= 120 100 m So, force is finally F₂= G m^2 r^2 ( 24 25 ) Hence, reduction in F₂ is F₁-F₂ F₁ 100 %=-4 %

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