v = Δd/Δt

where:

* v is velocity

* Δd is the change in displacement (final position minus initial position)

* Δt is the change in time (final time minus initial time)

Velocity is a vector quantity, meaning it has both magnitude (speed) and direction.

To find just the speed of an object, we use the equation:

speed = distance/time

Speed is a scalar quantity, meaning it only has magnitude (how fast something is moving).

Here's a breakdown of the differences:

* Velocity: Measures both how fast an object is moving *and* in what direction.

* Speed: Only measures how fast an object is moving.

For example:

* A car traveling at 60 miles per hour east has a velocity of 60 mph east.

* A car traveling at 60 miles per hour has a speed of 60 mph.