In the real world, it is difficult to find a situation where no forces are acting on an object. But by applying additional forces, a condition can be achieved where the net force on the object is zero. Explain with the help of an example. [Pg. No. 101]

In real life, forces like gravity and friction usually act on objects. However, by applying additional forces, these forces can be balanced so that the net force becomes zero.

For example, when a book is kept on a table, the gravitational force pulls the book downward, while the table exerts an equal upward normal force on it. Since these two forces are equal and opposite, the net force on the book is zero, and the book remains at rest.