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abstraction > mathematical concept > number > quantity > velocity > escape velocity |
escape velocity comparison table |
Subject | is a kind of | has definition |
---|---|---|
velocity | quantity | The speed and the direction of an object's motion. |
escape velocity | velocity | The velocity that a body requires to achieve a parabolic orbit around its primary (Ve = sqrt(2GM/R)). Escape velocity at Earth's surface is 11.2 km s-1; of Moon, 2.4 km s-1; of Sun, 617.7 km s-1 (cf. orbital velocity). |
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