What are unbalanced forces. Give examples.
When the resultant of several forces acting on a body is not zero, the forces are said to be unbalanced forces.
A change in the state of rest or uniform motion of a body is produced by unbalanced forces.
Below are given some examples of unbalanced forces:
(i) In a tug-of-war, when one of the two teams pulls the rope with a larger force, they are able to pull the weaker team towards it. Here the two forces are not balanced. Therefore, it results in the motion of the weaker team towards the larger force along the rope.
(ii) When we stop peddaling a bicycle, it begins to slow down. Enough force is to be applied to overcome the frictional force between the road and the tyres of the bicycle.
Therefore, we can say that objects continue to be in motion or rest, with the same velocity unless acted upon by unbalanced forces.