Balanced and Unbalanced Forces

When two or more forces act simultaneously on a body in the same or different direction then the overall effect of these forces on the body is known as the resultant force. In other words, the resultant force is that force that would produce the same effect on the body as that produced by several forces acting simultaneously on the same body. When the resultant of several forces acting simultaneously on an object is non-zero, then the forces are said to be unbalanced forces. An unbalanced force can change the state of rest, state of uniform motion, speed or direction of a body. When the resultant of several forces acting simultaneously on an object is zero, then the forces are said to be balanced forces. For example, in the game of tug of war, when both teams exert equal force on the rope in opposite directions, the rope does not move at all. This is because, forces of equal magnitude, acting in opposite directions, cancel each other's effect. Hence, the forces are balanced forces.

Read the paragraph carefully and answer the following question:

When two or more forces act simultaneously on a body in the same or different direction then the overall effect of these forces on the body is known as the resultant force. In other words, the resultant force is that force that would produce the same effect on the body as that produced by several forces acting simultaneously on the same body. When the resultant of several forces acting simultaneously on an object is non-zero, then the forces are said to be unbalanced forces. An unbalanced force can change the state of rest, state of uniform motion, speed or direction of a body. When the resultant of several forces acting simultaneously on an object is zero, then the forces are said to be balanced forces. For example, in the game of tug of war, when both teams exert equal force on the rope in opposite directions, the rope does not move at all. This is because, forces of equal magnitude, acting in opposite directions, cancel each other's effect. Hence, the forces are balanced forces.

Read the paragraph carefully and answer the following question:

Assertion (A) : When the resultant of all the forces acting on a body is zero, the forces are said to be unbalanced.

Reason (R) : The unbalanced forces can change direction of motion.

What are the unbalanced forces?

State True or False. Also correct the false statements. 

Weight of an object is equal to the force exerted by the earth on that body.

A camel can walk/run in deserts more easily as compared to horse, donkey etc., because its 

Can a balanced force bring about any change in the state of motion of an object?