Question

what do you understand by the term speed ? what is its unit ? ​

Answer 1

Speed is defined as the rate of change of distance with time. It has the dimension of distance by time. Thus, the SI unit of Speed is meter per second. In everyday life, kilometer per hour or in countries like US and UK miles per hour are used as the unit of speed.

Answer 2

Speed is defined as the rate of change of distance with time. It has the dimension of distance by time. Thus, the SI unit of speed is given as the combination of the basic unit of distance and the basic unit of Time. Thus, the SI unit of Speed is meter per second.