Question

define 1kg mass? is it a fundamental or derived unit?

Answer 1

Answer:

noun. a unit of mass equal to 1,000 grams: the basic unit of mass in the International System of Units (SI). Up until 2019 the kilogram was defined as equal to the mass of an international prototype, a platinum iridium cylinder kept in Sèvres, France.

Explanation:

And it is a fundamental unit