Physics 211
Lecture 6
Video Problem 2

Video Demonstration
1 minute and 55 seconds running time.
Video example #2, Lecture 6: A spacecraft drifting through the center of a giant cosmic dust cloud experiences a potential energy that varies with position as shown (d = distance from the center of the dust cloud). The spacecraft has a total mechanical energy of E = -4 kJ
 
a) With this energy, what is the farthest distance the spacecraft could drift from the cloud's center? (Circle one)
0 km 4 km 6 km 8 km 10 km 12 km

b) Determine the kinetic energy of the craft 2 km from the cloud center.