Physics

Problem

Identify the correct proportional relationship expressed by Newton’s law of universal gravitation for two point masses

m_1

and

m_2

separated by distance

r

. a)

F \propto \dfrac{m_1 m_2}{r}

F \propto \dfrac{m_1 m_2}{r^2}

F \propto \dfrac{m_1+m_2}{r^2}

F \propto \dfrac{m_1 m_2}{r^3}