Question

2. Gravitational force acts on all objects in proportion to their
masses. Why then, a heavy object does not fall faster than a
light object?​

Answer 1

Explanation:

Gravitational force acts on all object in proportion to their mass, this means,

$f \alpha \: m$

Where 'f' is the force and 'm' is the mass of the object.

$f = km$

where 'k' is the Proportionality constant

Now by newtons 2nd law of motion, we have the equation,

$f = ma$

a= acceleration of the object.

So,

$ma = km \\ a = k$

So, we get that acceleration is constant.

So, the statement that gravitational force acts in proportion to the mass is the very reason why all masses fall with same acceleration.