CBSE Notes | Class 9th | Science| NCERT Based :Balanced and Unbalanced Forces

Balanced and Unbalanced Forces

            If we put wooden block on a horizontal table, two opposite faces of the block as shown. If we apply a force by pulling the string X, the block begins to move to the right. Similarly, if we pull the string Y, the block moves to the left. But, if the block is pulled from both the sides with equal forces, the block will not move, such forces are called balanced forces and do not change the state of rest or of motion of an object.

Let us consider a situation in which two opposite forces of different magnitudes pull the block. In this case, the block would begin to move in the direction of the greater force. Thus the two forces are not balanced and the unbalanced force acts in the direction the block moves. This suggests that an unbalance force acting on an object bring it in motion.