alleryStart learning →Using G = 6.673 x 10^-11 N.m^2/kg^2, what is the gravitational force between two 60.0 kg people sitting 100 m apart?
A2.4 x 10^-11 N
B2.4 x 10^-9 N
C3.6 x 10^-1 N
D3.6 x 10^1 N
Answer & Solution
Correct answer: A. 2.4 x 10^-11 N
1. F = G(m1 m2)/r^2.
2. F = (6.673 x 10^-11)(60.0)(60.0) / (100)^2 = (6.673 x 10^-11)(3,600) / 10,000.
3. F = 2.4 x 10^-7 / 10,000 = 2.4 x 10^-11 N.
_Source: OpenStax Physics (CC BY 4.0), Ch 7 "Newton's Law of Gravitation", section 7.2 Newton's Law of Universal Gravitation and Einstein's Theory of General Relativity_
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