minimum escape velocity to leave Mars I'd like to know the formula and the values of the constants this problem: A rocket is sitting on a launch pad at zero elevation on the surface of Mars, pointed directly towards the sky. What's the escape velocity, u

minimum escape velocity to leave Mars

I'd like to know the formula and the values of the constants this problem:

A rocket is sitting on a launch pad at zero elevation on the surface of Mars, pointed directly towards the sky. What's the escape velocity, using Mars as a reference frame, for the rocket to leave Mars and not fall back due to gravity?