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24 October, 09:52

What is a fundamental physical quantity? Name three fundamental physical quantities and for each, give its S. I. units and its U. S. Customary units.

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  1. 24 October, 10:40
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    meter, second and kilogram

    Explanation:

    The fundamental quantities in mechanics are: length, mass and time.

    In the international system of measurements the unit of length is the meter, in USA the length uses the English system that is the inch

    Time is the second unit of measurement in both the SI system and the English system (USA)

    The mass has the unit in the system if the kilogram (kg) in the SI system, but the equivalent unit in the groin system is not widely used, they prefer to use the pound even when it is a unit of weight.
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