Question

2 mass particles of mass M and m respectively are placed at a distance R apart gravitational force of attraction between them is f if the mass of each of the two particles and distance between them is doubled then the value of gravitational force between them will be________
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Answer 1

Answer: f=G*M*m/r^2

Explanation:

• As we know, f=GMm/R^2
• mass of each of 2 particles is doubled, so
• M=>2*M & m=> 2*m
• Also, distance=2*r
• Value of gravitational force will be:
• f=G*(2M)*(2m)/(2*r)^2
• f=4*G*M*m/4*r^2
• So, f=G*M*m/r^2