Formulas & tables/Physics/Gravitation

Gravitation

7 formulas · Physics

Newton's law of universal gravitation
F=Gm1m2r2F=G\dfrac{m_1 m_2}{r^2}
Gravitational acceleration
g=GMR2g=G\dfrac{M}{R^2}
First cosmic velocity (circular orbital speed)
vI=GMRv_I=\sqrt{\dfrac{GM}{R}}
Kepler's third law
T2a3=const\dfrac{T^2}{a^3}=\text{const}
Second cosmic velocity (escape velocity)
vII=2GMRv_{II} = \sqrt{\dfrac{2GM}{R}}
Weight (gravitational force)
F=mgF = mg
Gravitational acceleration at the surface
g=GMR2g = \dfrac{GM}{R^2}