Question

If the displacement time graph for a particle is parallel to time axis, what is the velocity of the particle?

Answer 1

Then there is no velocity
Because the object is at its place it has not moved around all
I think this is the answer but it can be wrong

Answer 2

Hey!!
_________________

If the displacement time graph for a particle is parallel to time axis, then the particle is at Rest i.e. It has zero velocity.
_________________

Hope it helps ☺️