Answer:
C. 240 N
Step-by-step explanation:
I think you have the third answer choice incorrect. It should be 240N because that is the correct answer
From newtons law of gravitation, the gravitational force equation between two objects is given by
where m₁ and m₂ are the masses of the two objects, G = gravitational constant and r the distance between the objects
If we double m₁ and m₂, the new gravitational force becomes
which is 4 times the original force
So if original force = 60 N, then resultant force after doubling both the masses = 4 x 60 =240N