Is speed equal to velocity

Answer 1

Velocity is a vector, which means it has a direction, but speed isn't. Speed is

the absolute value of velocity.

Velocity can be negative, meaning that the speed is opposite to the direction

that you're calling the positive direction.

Answer 2

Speed is the size of velocity. But velocity also has a direction.

"30 miles per hour" is speed.

"30 miles per hour north" is velocity.