# Gravity Equations Formulas Calculator

## Science Physics Critical or Escape Speed

Solving for planet mass.

Note: G is the universal gravitational constant
G = 6.6726 x 10-11N-m2/kg2

#### Inputs:

 escape or critical speed (ve) meter/second centimeter/hour centimeter/second foot/day foot/second inch/hour inch/second kilometer/hour kilometer/second knot mach sea level 15 C meter/day mile/hour mile/second millimeter/second speed of light in vacuum yard/second planet radius (R) meter attometer centimeter chain dekameter decimeter exameter femtometer foot gigameter hectometer inch kilometer light year link megameter micrometer micron mile millimeter nanometer petameter picometer rod terameter yard

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#### Conversions:

 escape or critical speed (ve) = 0 = 0 meter/second planet radius (R) = 0 = 0 meter

#### Solution:

 planet mass (M) = HAS NOT BEEN CALCULATED

#### Other Units:

Change Equation
Select an equation to solve for a different unknown

Newton's law of gravity
 gravitational force exerted between two objects mass of object 1 mass of object 2 distance between the objects

Kepler's third law
 satellite orbit period satellite mean orbital radius planet mass

gravitational acceleration
 gravitational acceleration planet mass radius from the planet center

escape or critical speed
 escape or critical speed planet mass planet radius

References - Books:

Tipler, Paul A.. 1995. Physics For Scientists and Engineers. Worth Publishers. 3rd ed.

by Jimmy Raymond

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