Question

Find the ratio of old and new gravtstional force between two objectit thr mass of one object one third and the distance between them refuces to half

Answer 1

let the initial force be F. so

F = G M1M2 / r²

lets new force be denoted by F' and

• F' = (G M1/3 M2 )/ (r/2)²
• F' = 4/3 × GM1M2 /r²
• F' = 4/3 × F

hope it helps you

Answer 2

1st case,

F1=Gm1m2/r^2

2nd case,

F2=4Gm1m2/3r^2

F1/F2=3/4