In the scenario you described, a pendulum swings in a circular arc. The energy types can be analyzed at different positions along this path:
1. **At the highest points (A and E)**: The potential energy is at its maximum because the pendulum is at its highest elevation. At these points, the speed of the pendulum is zero, so the kinetic energy is at its minimum (which is zero).
2. **At the lowest point (C)**: The potential energy is at its minimum because it's at the lowest elevation. Here, the pendulum is moving at its fastest speed, so the kinetic energy is at its maximum.
3. **In the middle position (B)**: The pendulum is neither at its highest nor lowest point. At this position, both potential energy and kinetic energy will be in between their maximum and minimum values.
In summary:
- **Potential energy is greatest at points A and E.**
- **Kinetic energy is greatest at point C.**