1. | \(\dfrac{B}{A}\) | 2. | \(\dfrac{B}{2A}\) |
3. | \(\dfrac{2A}{B}\) | 4. | \(\dfrac{A}{B}\) |
The potential energy of a system increases if work is done:
1. | by the system against a conservative force |
2. | by the system against a non-conservative force |
3. | upon the system by a conservative force |
4. | upon the system by a non-conservative force |