Lesson: Escape Velocity
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
Worksheet: 8 Questions • 2 Videos
What is the speed needed to escape from the Earth-Moon system from a point on the surface of Earth? Assume there are no other bodies involved and do not account for the fact that Earth and the Moon are moving in their orbits. Use a value of km for the distance between the centers of the Moon and Earth, kg for Earth’s mass, and kg for the Moon’s mass.
Find the escape speed of a projectile from the surface of Pluto. Use a value of kg for the mass of Pluto and km for its diameter.
What is the Schwarzschild radius for the black hole at the center of our galaxy if it has the mass of kg solar masses? Use kg as the value of the Sun’s mass.