Question

how do we measure the standard international unit for mass length and time? also explain why they are also called fundamental units please solve this in 5 marks

​

Answer 1

Answer:

Explanation:

The meter, symbol m, is the SI unit of length. It is defined by taking the fixed numerical value of the speed of light in vacuum c to be 299 792 458 when expressed in the unit m s-1, where the second is defined in terms of ΔνCs. The kilogram, symbol kg, is the SI unit of mass.