What two units of measurement are necessary for describing speed?

Solution:

Speed is calculated by using the formula, speed= distance/time. Let us see which two units of measurement are necessary for describing the speed.

The SI unit of distance is the meter and the SI unit of time is second.

So, the SI unit of speed is meter per second. 

Therefore, meter and second are the two units of measurement that are necessary for describing the speed.

What two units of measurement are necessary for describing speed?

Summary:

Meter and second are the two units of measurement that are necessary for describing the speed.