What is the Maximum Speed of a Car at the Top of a Hill? (3:49)
What is the maximum linear speed a car can move over the top of a semi-circular hill without its tires lifting off the ground? The radius of the hill is 1.8 meters. This is an AP Physics 1 topic.

Content Times:
0:08 Translating the problem
0:42 Drawing the free body diagram and summing the forces
1:45 Why the force normal is zero in this situation
2:26 Finishing the problem