The correct response is:
The potential energy will stay the same as long as the book stays on the table. The kinetic energy increases when the book is shoved and then gradually decreases as it slides across the table and then comes to rest on the edge.
Explanation:
- The potential energy remains constant because the book is on a flat surface and its height does not change.
- When the person shoves the book, it gains kinetic energy. As the book slides across the table, it gradually loses this kinetic energy due to friction until it eventually comes to rest.