Question

Newton's law of gravitation is applicable to:

• A. Bodies on earth only
• B. Bodies on planets only
• C. Bodies in our solar system only
• D. All bodies in the universe

Answer 1

The correct option is D All bodies in the universe

Newton's law of gravitation is applicable to all bodies in the universe. It states that every particle attracts every other particle in the universe with a force (F) which is directly proportional to the product of their masses $m_1$ and $m_2$ and inversely proportional to the square of the distance between their centres (r).
$F=\frac{G{m}_1{m}_2}{r^2}$ ; where G is the universal gravitational constant.