This is only an educated guess, but back in the early part of the 20th century, the main street in any given town was referred to as "the main drag". Since organized drag racing grew from street...
turbulated or swirling air behind the vehicle Answer:Drag is the generic term for friction caused by the interaction of a fluid or gas on a fluid or solid. Drag is somewhat related to the materials...
Drag is a force vector, usually caused by air resistance, fluid resistance, or friction, that causes acceleration in a direction opposite to an object's velocity vector.