Lecture no. 13 from the course: Physics and Our Universe
Taught by Professor Richard Wolfson | 30 min | Categories: The Great Courses Plus Online Science Course
Newton realized that the same force that makes an apple fall to the ground also keeps the moon in its orbit around Earth. Explore this force, called gravity, by focusing on circular orbits. End by analyzing why an orbiting spacecraft has to decrease its kinetic energy in order to speed up.