Part 1:

Below (in the video) are two potential energy curves representing an object that is experiencing gravitational potential energy.

a) Considering the 'total Energy' lines in each graph, draw Kinetic Energy curves that correspond with the potential curves.

Part 2:

b) You have an object that you would like to be in Earth's orbit. Which graph represents being in orbit, and how would you calculate the velocity needed to be in orbit?

Part 3:

c) How would you calculate the velocity needed to no longer be in orbit? Calculate this value for Earth.