Gravitational attraction between two objects

Explanation

Solution

\(F = G \cdot \frac{m_1 \cdot m_2}{d^2}\)

\(F = 6.67 \cdot 10^{-11} \frac{N \cdot m^2}{kg^2} \cdot \frac{70 kg \cdot 70 kg}{(1 m)^2}\)

Recalling that a newton is about \(\frac14\) of a pound, we see that this is less than \(10^{-7}\) lb, or less than one ten-millionth of a pound! No wonder we do not experience it!