Question

If the distance between two bodies is increased by 25%, then the change in the gravitational forces(a) Decreases by 36%(b) Increases by 36%(c) Increases by 64%(d) Decreases by 64%GIVE PROPER EXPLAINATION​

Answer 1

F2/F1=(d1)2/(d2)2

d2=d1+(d1)/4

Substituting the values of d2 and d1

F2/F1=16/25

Calculating dF/F

dF/F=F2−F1/F1=−9/25

dF/F×100=−36%

Therefore the force decreases by 36%