Question

observe the book kept on the table .If gravitational force is acting on the book ,then why is the book not moving down​?

Answer 1

Answer:

Explanation:

It is because the book is kept on the table, and due to gravitational force book exerts some force on the table, and newtons 3rd law every force has an equal and and opposite force, so the table also exerts an equal and opposite force on the book, which does not allow the book to go down. The force exerted by table on book nullifies the gravitational force on the book.