Physics
Grade-10
Easy

Question

What happens to the gravitational force (F) between two bodies if the mass of a body is doubled and the distance between them is tripled:

  1. (2/3) F
  2. (5/3) F
  3. (2/9) F
  4. (5/9) F

hintHint:

The gravitational force is directly proportional to the mass of objects and indirectly proportional to the distance between them.

The correct answer is: (2/9) F


    The correct option is b)(2/9) F.
    F equals fraction numerator G M m over denominator R squared end fraction
N o w space M equals 2 M
R equals space 3 R
F equals fraction numerator 2 G M m over denominator left parenthesis 3 R right parenthesis squared end fraction
F equals 2 over 9
    Here g is gravitational constant, M is mass of object 1, m is mass of object 2 and R is the distance between the objects.

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