Loop-the-Loop
In this demonstration, we use the contraption shown in figure (LINK to figure) to illustrate how methods based on energy conservation can be used to solve problems. The contraption has two long aluminum tracks parallel to each other mounted on a long wooden platform (3.35m). The geometry of the tracks is basically of a ramp on each end connected by the mid section. One track is straight with the ramps connected by a flat section. The other track has a loop 0.535m in diameter in its mid section . The tracks are made of C-profile facing up and can fit either an sphere (2.54 cm diameter) or a wheeled metal car. The car's wheels have a small moment of inertia and roll on top of the edges of the track. Because these objects are actually rolling, the friction with the track is keep to a minimum. Nevertheless, the energy lost to friction can be calculated using the straight track. The relevant distances for the tracks are given in this diagram ( LINK to diagram).
| Qty. |
name |
location |
notes |
| 1 |
Loop-the-Loop |
W106; North Counter top |
|
| 1 |
Metal Ball |
attached to base of the Loop-the-loop |
|
| 2 |
Metal car |
attached to base of the Loop-the-loop |
|
