Lesson: Escape VelocityPhysics
In this lesson, we will learn how to calculate the velocity required to escape the pull of a gravitational body given the body’s mass and radius.
Sample Question Videos
Find the escape velocity from the surface of Mars. Use a value of kg for the mass of Mars and a value of 3,390 km for its radius.
Find the escape speed of a satellite located at the Moon’s orbit about Earth, assuming the Moon is sufficiently far from the Satellite to not influence its escape speed. Use a value of km for the Moon’s orbital radius and use a value of kg for the Earth’s mass.
The distance from a solar system to the center of the Milky Way is 27,000 light-years. Assume that the mass contained in the sphere of radius 27,000 light-years is 100 billion solar masses, taking 1 solar mass as kg. What is the escape velocity for the Milky Way from the position of this solar system?