Why is a book resting on a table in a state of

equilibrium? (1 point)
Gravity is a net force acting on the book in a
downward direction.
The book and the table both have acceleration
(due to gravity) of 9.8 m/s/s.
The book and the table have the same weight.
The book's weight and the upward force the table
exerts on the book have equal magnitude but
opposing directions.

1 answer

The third option, "The book and the table have the same weight," would be the correct answer.

When an object is at rest and in a state of equilibrium, it means that the forces acting on it are balanced, resulting in no net force. In this case, the weight of the book (the force of gravity acting on it) is balanced by the upward force the table exerts on the book. These two forces have the same magnitude but act in opposite directions, which leads to equilibrium.