You must include citations for all reliable sources used. Include citations from three or more reliable sources. I need this for x-ray and radio
(Can you please type it in, but not in a link because it doesn't work for me with the link, but if you can't type all in that's fine)

and 1and 1

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.