Gravity Calculations - Earth

Welcome! This site allows you to perform various gravity calculations based on Isaac Newton's law of universal gravitation.

Earth
Earth
Mass (kg)5.9736E+24
Mean Radius (km)6371
m (mass relative to Earth)1
r (mean radius relative to Earth)1
g-force1
Acceleration (m/s/s)9.807

Gravity Solutions


How far has an object fallen after t seconds? Equation: [Latex: d=\frac{gt^2}{2}]


How fast is an object going after falling for t seconds? Equation: [Latex: v=gt]


How long (in seconds) does it take an object to fall distance d? Equation: [Latex: t=sqrt {2d/g}]


What is the velocity of an object that has traveled d meters? Equation: [Latex: v=sqrt{2gd}]


What has been the average velocity of an object that has been falling for t seconds? Equation: [Latex: v_{Avg}=\frac{gt}{2}]


What has been the average velocity of an object that has fallen for distance d meters? Equation: [Latex: v_{Avg}=\frac{sqrt{2gd}}{2}]

Footnotes:

  • It is assumed that the falling object in question has negligible mass.
  • It is assumed that the object started freefall on the surface of the body (i.e., the initial distance from the body's center of gravity was the radius of the body)
  • Mass and mean radius data from the NASA factsheet.