Question

Net force acting on a body is zero, if two forces acting on it are ___

Answer 1

Hint: In physics, a force is any influence that, when unopposed, causes an object to change its velocity. A force can cause a mass item to change its velocity (which includes starting to move from a standstill), i.e. accelerate. Intuitively, force may be characterised as a push or a pull. A force is a vector quantity since it has both magnitude and direction. The SI unit of Newton is used to measure it (N). The letter F is used to signify force.

Complete answer:
We call two forces operating on an item balanced when they are equal in magnitude yet operate in different directions.
This is what occurs when the forces acting on an item are balanced (or there are no forces operating on it).
A stationary item does not move.
A moving item keeps travelling in the same direction and at the same speed.
Keep in mind that an item can move even if no forces are acting on it.
A Balanced Force is a force that occurs when two equal-sized forces operate in opposite directions on a body. A body under Balanced Force maintains its position, i.e., it may continue to move at the same speed and in the same direction or it may remain still. Assume you're pushing a wall and, as you might imagine, neither the wall nor you move. It indicates you and the wall are exerting an equal amount of force on each other. When two opposing forces act on a body, the net force is the difference between the two forces acting in the direction of the greater force. The net force, on the other hand, is equal to the sum of the two forces acting in the same direction.

Note:
According to the Newton’s third law, all forces between two things are equal in magnitude and opposite in direction: if one object A exerts a force ${F_A} $on a second object B, B simultaneously exerts a force ${F_B} $ on A, and the two forces are equal in size and opposite in direction: ${{\mathbf{F}}_A}\; = {\text{ }} - {{\mathbf{F}}_B} $