Question

define mass and its unit?​

Answer 1

Answer:

Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The basic SI unit of mass is the kilogram (kg).

Answer 2

Answer:

Mass (symbolized m) is a dimensionless quantity representing the amount of matter in a particle or object. The standard unit of mass in the International System (SI) is the kilogram (kg). ... The mass of an object can be calculated if the force and the acceleration are known. Mass is not the same thing as weight.