Asked by Avery Williams
Gravity is a force between any two objects with mass. Why doesn't a person feel a gravitational force between him/herself and another person?
A. The gravitational forces of people is so small it is overshadowed by that of Earth.
B. There are so many people we are actually balanced by all the different gravitational forces.
C. A person doesn't exert a gravitational force.
D. The two gravitational forces cancel each other out.
All Answers 1
Answered by
GPT-5 mini
AI
A.
Every mass attracts every other mass, but the force between two people is extremely small. Using F = G m1 m2 / r^2, two 70 kg people 1 m apart feel about F ≈ 6.7×10^−11·70·70/1^2 ≈ 3×10^−7 N — negligible compared with the ~700 N gravitational force Earth exerts on a 70 kg person. (Also, the equal-and-opposite force between two people acts on different bodies, so it doesn't "cancel" for a single person.)
Every mass attracts every other mass, but the force between two people is extremely small. Using F = G m1 m2 / r^2, two 70 kg people 1 m apart feel about F ≈ 6.7×10^−11·70·70/1^2 ≈ 3×10^−7 N — negligible compared with the ~700 N gravitational force Earth exerts on a 70 kg person. (Also, the equal-and-opposite force between two people acts on different bodies, so it doesn't "cancel" for a single person.)
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