Why V is speed?

Answer 1

"v" is short for velocity. Now, "velocity" is not exactly the same as "speed" (velocity includes the direction - in other words, it is a vector), so it may be a misnomer in some cases. I believe "s" is avoided because the symbol is often used for distances.

Answer 2

In physics, velocity (V) is a vector quantity that describes the rate at which an object changes its position. It includes both the speed and direction of an object's motion. Speed, on the other hand, is a scalar quantity that tells us how fast an object is moving without specifying its direction.

Answer 3

VFE