What do these have in common? time, distance, speed

Also, What do these have in common? position, velocity, acceleration, displacement

and how do i calculate displacement?

Hi Taylor Avie, in time, distance and speed, all of these are scalar quantities.
But in case of velocity, acceleration and displacement, these three are vector quantities.
Displacement is calculated by the length of the line joining the initial and final positions of the object.
So in case of an object which completes one round along a circle would have a zero displacement though the distance covered is the circumference of the circle ie 2pi r.

S = D/t


Displacement = change in position
velocity = displacement divided by time
acceleration = velocity divided by time