Question

If the distance increased between two masses M1=4kg,m2=9kg,
by what factor of 4 by what.factor would the mass of one them to be altered to maintain the same gravitational force?​

Answer 1

Answer:

If Distance (r) is increased by 4 then F is decreased by 4^2 = 16. To neutralise this effect product of masses m1 and m2 should be equal to 16.