Question

what would be the effect of replacing the steel ball with a wooden ball, a lead ball and a ping pong ball of the same size neglecting the air resistance​

Answer 1

If we neglect air resistance there is no force opposing all this ball thus this all ball will fall with same velocity because force of earth acting on this all ball is same that is 9.8m/s
This is called free fall they all fall with same velocity
g=GM/R
Here force is dependent to M(mass of earth) and and R(radius of earth) there is no relation of mass of object so all objects fall with same velocity

Answer 2

Answer:Question: What would be the effect on simple pendulum for replacing the steel ball with a wooden ball, a lead ball, and a ping pong ball of the same mass? Answer: ... A ping pong ball of the same mass as a lead ball would be relatively much, much larger than the lead ball, so it would be subject to air resistance.

Explanation: