Question

Kicking a football is an example of:
(A) balanced force
(B) unbalanced force
(C) both A and B
(D) neither A nor B

Answer 1

Hint:The two types of forces can be applied to the football, one is balanced force, and another one is an unbalanced force. When we apply balanced force, the effect of the force on the ball is zero, but when we apply the unbalanced force of the football, it will generate some effect on the ball and football starts to move.

Complete step by step answer:
When we push or pull the football, we are applying force on the football. Generally, the effects of force generate the motion of the football. The movement of football depends on the magnitude of the applied force. Sometimes when we apply forces on the football from different directions, the net force on the football becomes zero, and we can not move the football. If the net force on the football becomes zero, then it is known as a balanced force because the magnitude of the forces will cancel out each other. Generally, when two opposite direction forces of the same magnitude are applied to football, then balanced force acts.
But if we applied different forces of different magnitude on the football at the same time and the direction of the forces are also different then the unbalanced force acts on the football because the net force does not become zero in this condition. So, the unbalanced force is the reason for the football movement, and when we kick the football, the unbalanced force acts on it.
Therefore, kicking a football is an example of unbalanced force and option (B) is correct.

Note:Remember that when balanced force is applied, the effect of the net force on the football is zero and due to this, the movement of the football does not take place. But when an unbalanced force is applied, the effect of the net force on football is not zero, and due to this, football moves from its initial state.