### Formula

M

mass of the planet

ve

escape velocity

r

distance from the centre of gravity

M

mass of the planet

ve

escape velocity

r

distance from the centre of gravity

Escape velocity is the speed at which the kinetic energy plus the gravitational potential energy of an object is zero. It is the speed needed to "break free" from a gravitational field without further propulsion.

ve

r

M

Precision

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