Question

Find the escape velocity ve for an object of mass m that is initially at a distance r from the center of a planet of mass m. assume that r≥rplanet, the radius of the planet, and ignore air resistance.

Answer 1

We are given
m = mass of the object
r = distance from the center of the planet
r ≥ rplanet

We are asked for the
ve = escape velocity

The escape velocity
ve = √ (2Gm/r)