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.
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.
The book is in a state of equilibrium when resting on a table because the forces acting on it are balanced. Specifically:
1. Gravity is a net force acting on the book in a downward direction. This force is the weight of the book, and it pulls the book towards the center of the Earth.
2. The book and the table both have acceleration due to gravity of 9.8 m/s/s. This means that both the book and the table are subject to the same gravitational force, and they experience the same acceleration towards the Earth.
3. The book and the table have the same weight. Weight is the force exerted by gravity on an object, and it is equal to the mass of the object multiplied by the acceleration due to gravity. Since the book and the table are on Earth's surface and experience the same acceleration due to gravity, they have the same weight.
4. The book's weight and the upward force the table exerts on the book have equal magnitude but opposing directions. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. The table exerts an upward force on the book to balance out the weight of the book pulling it downwards. These two forces have equal magnitude but opposite directions, resulting in a state of equilibrium.
Therefore, when the book is resting on a table, it remains in a state of equilibrium because the downward force of gravity (the book's weight) is balanced by the upward force exerted by the table.
A book resting on a table is in a state of equilibrium because the forces acting on it are balanced. In this case, there are two main forces at play: gravity and the upward force exerted by the table.
First, let's consider gravity. Gravity is a force that pulls objects downward towards the center of the Earth. In this case, gravity is acting on the book, pulling it downwards. So, we have a force acting on the book in the downward direction due to gravity.
Next, we have the upward force exerted by the table on the book. This force is exerted by the table to support the weight of the book and prevent it from falling through or collapsing the table. This upward force counters the downward force of gravity.
For the book to be in equilibrium, these two forces must be equal in magnitude but opposite in direction. This means that the weight of the book (which is the force due to gravity) and the upward force exerted by the table must be balanced. When these forces are equal and opposite, they effectively cancel each other out, resulting in a state of equilibrium.
So, a book resting on a table is in a state of equilibrium because the downward force due to gravity and the upward force exerted by the table balance each other out.