Single Isolated Force

How will you prove that the existence of single isolated force is impossible?

Single Isolated Force

It is a fact that there is no such thing as a single force in the universe. It will be clear from the following

examples:

1) if we push against a wall, the wall pushes back on us.

2) When we throw a ball, as we are pushing it into air, it is pushing back on our hand.

The above mentioned examples indicate that when one body exerts a force on second body, the second body always exerts a force on the first. Moreover these forces are equal in magnitude but opposite in direction. Hence it is concluded that a single isolated force Is therefore impossible and the forces always occur in pairs. These two forces are called “Action” and ‘Reaction” pairs.