Escape Velocity / Speed Tutorial

Escape Velocity:

Escape Velocity is the minimum velocity needed to escape the gravitational field of a planet or other body. It is also called as Critical or Escape Speed.

Escape Velocity:

Escape Velocity:

Planet Mass:

Planet Radius:

where,

G = Universal Gravitational Constant = 6.6726 x 10^-11N-m²/kg² M = Planet Mass R = Planet Radius

Escape Velocity Examples:

Case 1:

What is the escape velocity on earth with respect to Earth's gravity? Mass of the earth = 5.98x10²⁴kg, R = 6378100 m, G = 6.6726 x 10^-11N-m²/kg².

Step 1:

Substitute the values in the below Escape Velocity formula:

This example will guide you to calculate the Escape Velocity manually.

Case 2:

Determine the Mars mass, where the escape velocity of mars is 5 x 10³. Radius of Mars = 33.97 x 10⁵ kg, v_e = 5 x 10³, G = 6.6726 x 10^-11N-m²/kg².

Step 1:

Substitute the values in the below Mass formula:

This example will guide you to calculate the Mass of the Mars manually.