Question

4. Define mass of a body​

Answer 1

The mass of a body is its inertia or resistance to change of motion. More precisely, it is a property of the body that determines the body's acceleration under the influence of a given force.

Answer 2

$\huge\underline\bold\red{AnswEr}$

defination :-

=> 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.