According to second law of Newton's motion, we can relate fundamental and derived units;
i.e F=ma
where,
'm' is mass of body which is fundamental quantity and its unit expressed in Kg.
and 'F' is the force implied on body produced acceleration which is directly proportonal to one another, whereas; force is derived quantity and its unit expressed in Kg-m/sec/sec or N.
Hence in this way we can relate these two.
derived units
The fundamental units are based on specific standards for each unit. Derived units result from manipulating the fundamental units. For example, the SI unit for distance or length is the meter, and the SI unit for time is the second. If you divide meters by seconds, you get m/s, a derived unit for speed or velocity.
N=(kg * m)/s^2
In FPS system of units, feet is the fundamental unit of length, one of the fundamental physical quantities.
If you look at the definitions of the SI units, and especially the derived units, you'll see that all the derived units are derived from other units. It might actually be possible to have even less base units, but that would make the system of units unnecessarily confusing.
Those are called derived units.
Derived units is obtained from a combination of fundamental units. Derived unit is a cubic centimeter or a cube that is a centimeter on each side.
derived units
FT is a derived unit and not a fundamental unit. The fundamental unit cannot be broken down into different forms. The derived units on the other hand are made up of the fundamental units.
They can be classified into fundamental units and derived units.
fundamental
The fundamental units are based on specific standards for each unit. Derived units result from manipulating the fundamental units. For example, the SI unit for distance or length is the meter, and the SI unit for time is the second. If you divide meters by seconds, you get m/s, a derived unit for speed or velocity.
the units that has not been assigned either to the fundamental units or to derived units.
Because.... There are two types of physical quantities. Fundamental and derived. Fundamental units cannot be derived from any of the two types of units while derived units can be derived from these two types of units. It's important to be clearly defined as there are so many indices of the base number. And no one can derive the units if they aren't properly defined
Fundamental quantities are quantities that can be measured such as mass, length and temperature. Derived quantities are quantities that has to be calculated such as pressure, volume and work done.AnswerThe SI does not define 'fundamental quantity', instead it uses the term 'Base Unit'. All other units are 'Derived Units', so-called because they are each derived from combinations of Base Units.
N=(kg * m)/s^2
In FPS system of units, feet is the fundamental unit of length, one of the fundamental physical quantities.