Respuesta :
Explanation:
The movement of an object involves two forces: the force applied to the body which causes acceleration of the object called kinetic force and the force that opposes it called the friction. These forces are involved in the movement of the book as:
1. When a book is kept on the desk, since no external force is applied to the book therefore the book remains at rest.
2. When the desk is placed in an inclined position, the inclined position causes the sliding of the book but as the book moves down the force of friction increases which causes the book to come at rest. This force of friction is known as the sliding force.
The movement of the book on the table has been attributed to the applied force in the inclined position, while the slowing down of the book's motion contributes to the friction.
What is force and friction?
Force can be defined as the pressure exerted to produce the motion of the object. The friction has been the stopping force that stops the motion of the object.
The inclination of the table resulted in the application of tangential force to the book, that favors the motion of the object.
The lowering of the table results in the stopping of the motion of the book. The lesser stopping force of the book motion was favored with the frictional force between the book and the table.
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