Question

What is the SI unit of mass? How is it defined?​

Answer 1

Answer:

The SI unit of mass is the kilogram (kg). In science and technology, the weight of a body in a particular reference frame is defined as the force that gives the body an acceleration equal to the local acceleration of free fall in that reference frame.

Explanation:

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Answer 2

Answer

Kilogram is used as SI unit of mass. It is represented by the symbol kg.

Kilogram is used as SI unit of mass. It is represented by the symbol kg. It is defined as the mass of platinium-iridium block stored at international bureau of weights and measures in France.