Question

Is the acceleration due to gravity on freely falling body proportional to the mass of object and time of fall explain

Answer 1

The speed of a falling object is not affected by the mass of the object (exluding air resistance).

Two objects of different mass (disregarding air resistance) will both accelerate at the same rate. This means that their speeds at equal instants will both be the same. This was discovered by Galileo. HIs experiments dropping or rolling objects of different mass showed that gravity does not pull different mass objects at different rates.

Newtons second law states that F=ma. This means that if both accelerate at the same rate, then the force acting on objects of different mass must be different (F is proportional to m) and the greater the mass, the greater the force of gravity that is acting on the object.