Question

distinguish between scalar quantity and vector quantity?

Answer 1

A scalar quantity is a one dimensional measurement of a quantity, like temperature, or mass. A vector has more than one number associated with it. A simple example is velocity. It has a magnitude, called speed, as well as a direction, like North or Southwest or 10 degrees west of North

Answer 2

scaler quantities-The physical quantities which have only magnitude and no direction are called scaler quantities.
vector quantities -the physical quantities which have both magnitude and direction and obey the laws of vector addition.