(a)Distinguish be

(a) The mass of a body is a measure of its inertia. It is independent of the acceleration due to gravity at a place. The weight of a body is the force with which it is attracted to the earth. It is directly proportional to the acceleration due to gravity. Thus, we feel heavier on earth than the moon. We experience weightlessness during free fall because we have no support to feel our weight

(b) The acceleration of a freely falling body is equal to g, which is known as acceleration due to gravity

The expression for acceleration due to gravity is

G' is universal gravitational constant,

'M' is mass of the earth,

And 'R' is radius of the Earth

From the above expression, it is clear that the acceleration of a freely falling body doesn't dependent of mass of the body, but depends on mass of the planet