The force of gravity between two identical balls is 0.1 N. What is the distance between the balls if the mass of each ball is 2.6 kg?

univerkov | December 13, 2020 | education

F = G * m1 * m2 / r ^ 2, G = 6.67 * 10 ^ (- 11).
r ^ 2 = G * m1 * m2 / F.
r ^ 2 = 6.67 * 10 ^ (- 11) * 2.6 * 2.6 / 0.1 approximately = 45.1 * 10 ^ (- 10).
r approximately = 6.7 * 10 ^ (- 5).
Answer: 6.7 * 10 ^ (- 5) meters.

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