Question

Calculate the force of gravitation between two object of masses 80 kg and 120 kg kept at a distance of 10 m of each other.

Answer 1

Newton's law of universal gravitation states that any two bodies in the universe attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.



Force of attraction = $F=\frac{G{m}_1\times m_2}{r^2}$
$F=\frac{6.67\times {10}^{-11}\times 120\times 80}{10\times 10}$
$F=640.32\times {10}^{-11}N$.