two 2g objects 2 meters apart two 2g objects 4 meters apart two 1g objects 6 meters apart two 1g objects 8 meters apart
I gave my students this multiple choice question: Which of these will result in the least gravitational attraction?

Only one answer is correct among these 4 choices:
- two 2g objects 2 meters apart
- two 2g objects 4 meters apart
- two 1g objects 6 meters apart
- two 1g objects 8 meters apart

Could you tell me which one is correct?

two 1g objects 8 meters apart