Question

does it mean that the net force on an object is zero if the two force acting on it in opposite directions are equal???

Answer 1

Explanation:
The net force is the total amount of force acted on an object. It becomes
0
when the forces are equal, cancelling each other out (or balancing them - same thing).
Let's go over each option.
Opposite direction
If the forces were equal, then they would cancel each other out. This results in a net force of
0

However, if the forces were unequal, the overpowering force would result in motion.

[The body would move towards the left]

Answer 2

Yes.
If two equal forces act on a body in opposite directions then the net force on it is zero.

But the body may still move.
For example- Take a pen and keep it on a smooth surface. Push its both ends with equal force but in opposite direction. It will start rotating.
Although, the Net Force is still zero.