1. A book is at rest on top of the table. Which of the following best explains that phenomenon? A. There is no force acting on the book. B. The book has no inertia. C. There is no force acting on the table. D. The book is in equilibrium,
The book does have the force of gravity exerted on it, but it is able to rest on the table because the force of gravity is countered by the force of the table pushing up on the book.
