Question

A set of unequal and opposite forces is called:
A. Balanced forces
B. Unbalanced forces
C. Equilibrium forces
D. None

Answer 1

Here we have to examine the options one by one to get the correct answer.
Unequal and opposite force means direction and magnitude of forces are opposite.

Complete step by step answer:
Now let us have a look at the options one by one-
Balanced forces-We can say that two forces are balanced when they act on an object similar in size but function in opposite directions. A stationary object stands still, while a moving object continues to travel in the same direction and at the same distance.
Unbalanced forces-We can say that two forces are unbalanced when they act on an object not similar in size. A fixed object tends to shift in the direction of force that arises from it. A moving object, in the direction of the resulting force, changes speed and/or direction.
Equilibrium forces- A force is a quantity of vector, meaning it has a magnitude as well as direction associated with it. When there is balance between the size and direction of the forces acting on an object, then there is no resultant force acting on the object, the object is said to be in equilibrium.
From the above discussion we can conclude that a set of unequal and opposite forces is called unbalanced force.

So, the correct answer is “Option B”.

Note:
Unequal and opposite forces do not totally balance each other out and thus result in net force behaving in a certain way. Unbalanced forces do not have the same magnitude and direction. Unbalanced forces lead to a change in the state of motion.