SSC MTS EXAM

Detailed explanation-1: -Answer. Wind blowing at 20 knots is a vector quantity.

Detailed explanation-2: -A quantity which does not depend on direction is called a scalar quantity. Vector quantities have two characteristics, a magnitude and a direction. Scalar quantities have only a magnitude. When comparing two vector quantities of the same type, you have to compare both the magnitude and the direction.

Detailed explanation-3: -Wind, for instance, is a vectorial quantity, because at any given location it has a direction (such as northeast) and a magnitude (say, 45 kilometers per hour). You could make a map of airflow at any point in time, then, by drawing wind vectors for a number of different geographic locations.