Problem 5: Motorcyclist revisited
In the group problems, you considered the forces acting on a motorcyclist driving in a vertical loop at constant speed, at the top and bottom of the loop. In this problem you’ll consider what happens at other points on the loop.
Point A is at the right-most part of the loop. Point B is at position that is 45° from point A, measured from the center of the loop as shown.
The radius of the loop is 2.5 m, and the combined mass of the
A. Draw a free-body diagram for point A. (Hint: The normal force is perpendicular to the loop, and the weight force is down. The motorcyclist is driving at constant speed, so there must be a third force acting on them. What is it?)
B. Determine the magnitude of all three forces on your FBD.
C. Draw a free-body diagram for point B. You may want to choose a different coordinate system than you did for point A.
D. Determine the magnitude of all three forces on your FBD.