Question

III Answer the following in brief
What are fundamental quantities?
b) What are derived quantities?
c) Which of the following is fundamental quantity time or speed? Glve reason to
support your answer​

Answer 1

Answer:

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Explanation:

• ✏️The Fundamental Quantity is independent Physical Quantity that is not possible to express in other Physical Quanitity. It is used as pillars for other quantities aka Derived Quantities. In Physics, Length, Mass, Time, Electric Current, Thermodynamic Temperature, etc are examples of Fundamental Quantities.

• ✏️Derived quantities are those that may be expressed in terms of base or derived quan- tities by means of the mathematical symbols of multiplication and division only (no addition or subtraction or any other sign). Basically they may be divided into two categories.

• ✏️Like length, mass, and charge, is usually described as a fundamental quantity. Time can be combined mathematically with other physical quantities to derive other concepts such as motion, kinetic energy and time-dependent fields.

✏️Whereas,Speed can be given as distance travelled / time taken and these both quantities are fundamental quanties and hence as speed is derived from these both quantities it is known as a derived quantity. The speed is a derived quantity as it being derived from a defined set of quantities through a formula.

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