Physics
Intermediate

Newton's Gravitation

Attractive force between two masses.

Formula

F=Gm1m2r2F = G\frac{m_1 m_2}{r^2}

Variables

m_1,m_2Masses
rDistance
G6.674×10⁻¹¹

Example

Earth (6×10²⁴ kg) pulls a 1 kg mass at its surface with about 9.8 N.

Did You Know?

Newton's gravitation applies everywhere — the same law that drops an apple keeps the Moon in orbit.

gravityforcenewton