Question

A balanced force:
(A) Tends to change the stage of motion of a body
(B) Tends to change the size and shape of a body
(C) Never exists
(D) Tends to create a rotation in a body

Answer 1

Hint: It should be known to us that fundamental force, also called fundamental interaction, in physics, any of the four basic forces gravitational, electromagnetic, strong, and weak that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces. The strong nuclear force, also called the strong nuclear interaction, is the strongest of the four fundamental forces of nature. Weight is a force acting on that matter. Mass resists any change in the motion of objects. In physics, the term weight has a specific meaning - which is the force that acts on a mass due to gravity. Weight is measured in newtons. Based on this concept we have to solve this question.

Complete step by step answer
We should know that a force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.
It should be known to us that balanced forces are those two forces acting in opposite directions on an object, and they are equal in size. Anytime if there is a balanced force on an object, the object stays still or it continues moving at the same speed and in the same direction is called a balanced force.
According to Newton's Laws of Motion, an unbalanced force is one that causes a change in the motion of the object to which the force is applied. An unbalanced force continues to accelerate an object until a new counterforce builds up and a new balance of forces is established.
We should know that a balanced force only tends to change the shape and size of the body. It does not tend to change the state of motion of the body.

Hence, the correct answer is option A.

Note: It should be known to us that when two forces are the same strength but act in opposite directions, they are called balanced forces. Again, tug-of-war is a perfect example. If the people on each side of the rope are pulling with the same strength, but in the opposite direction, the forces are balanced. The result is no motion. If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.