Question

What is meant by 1 kg. mass?define​

Answer 1

it means a matter of 1kg that does not have an acceleration due to gravity.

Step-by-step explanation:

Answer 2

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.