Lesson: Orbital Speed High School PhysicsPhysics
In this lesson, we will learn how to calculate the orbital speed of an object moving along a circular orbit given its orbital radius and the mass of the orbiting object.
Sample Question Videos
A satellite follows a circular orbit around Earth at a radial distance and with an orbital speed . At what radius, in terms of , would the satellite have to orbit in order to have an orbital speed of ?
Which line on the graph shows the relation between orbital speed and orbital radius for objects moving along circular orbits due to gravity?
Nilesat 201 is a communications satellite that orbits Earth at a radius of 35,800 km. What is the orbital speed of Nilesat 201? Assume that the satellite follows a circular orbit. Use a value of kg for the mass of Earth and m3/kg⋅s2 for the universal gravitational constant. Give your answer to 3 significant figures.