write down note on system of units
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Answer:
A system of units is a set of related units that are used for calculations. ... For example, in the MKS system, the base units are the meter, kilogram, and second, which represent the base dimensions of length, mass, and time, respectively. In this system, the unit of speed is the meter per second.
Answer:
The International System of Units, known by the international abbreviation SI[a] in all languages[2]: 125 [3]: iii [4] and sometimes pleonastically as the SI system,[b] is the modern form[2]: 117 [7]:41[8] of the metric system[g] and the world's most widely used system of measurement.[2]: 123 [10]:252[11] Established and maintained[12] by the General Conference on Weights and Measures[j] (CGPM[k]), it is the only system of measurement with an official status[m] in nearly every country in the world,[n] employed in science, technology, industry, and everyday commerce