What is speed in a given direction called

Speed in a given direction is called velocity.

Th answer to your question would be Velocity, example like the ball is traveling 90mph North west, Speed is just the speed no given direction

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.