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Planck momentum

The Planck momentum mpc is a measure of how hard it is to stop a moving object.

 


Explanation

A Planck momentum is equal to the Planck mass mp multiplied by the speed of light c and is defined by

where

    ℏ Reduced Planck constant
    lp Planck length

 


Alternative 1

It can also be expressed as

where

    ℏ Reduced Planck constant
    c Speed of light
    G Gravitational constant

 


History

The name Planck momentum is a tribute to the German physicist Max Planck (1858 - 1947).


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