This darkness cannot go on forever because the pendulum always swings back to the opposite direction (Abscondo Now!)
![A pendulum bob swings back and forth. At the instant shown, the bob is at one of the turnaround points, labeled A. The other turnaround point, labeled B, and the bob's trajectory ( A pendulum bob swings back and forth. At the instant shown, the bob is at one of the turnaround points, labeled A. The other turnaround point, labeled B, and the bob's trajectory (](https://homework.study.com/cimages/multimages/16/eeee24658588848301886375.png)
A pendulum bob swings back and forth. At the instant shown, the bob is at one of the turnaround points, labeled A. The other turnaround point, labeled B, and the bob's trajectory (
![A simple pendulum swings back and forth along a circular path subject to gravity ,rope tension and air resistance .a) Determine whether the work done by each of the three forces are A simple pendulum swings back and forth along a circular path subject to gravity ,rope tension and air resistance .a) Determine whether the work done by each of the three forces are](https://homework.study.com/cimages/multimages/16/aaaaa8639727114769373540.jpg)