The magnitude of the gravitational force between the two spheres is approximately; F = 1.67 x 10⁻⁹ N
We are given;
Mass 1; M = 15 kg
Mass 2; m = 15 kg
distance of separation; r = 3 m
Formula for gravitational force using newtons law of gravitation is;
F = GMm/r²
where;
M is mass 1
m is mass 2
G is gravitational constant = 6.67 × 10⁻¹¹ N.kg²/m²
r is distance of separation
Plugging in the relevant values, we have;
F = (6.67 × 10⁻¹¹ × 15 × 15)/3²
F = 1.67 x 10⁻⁹ N
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