Question

Hey friends,,,,,
Plz tell tell me- in a vaccum when a ball and a feather is drop simultaneously from a same height, then they will hit the ground at same time,,,, why?

Answer 1

Yes... because there is no air resistance which opposes motion of feather more than ball.

So in absence of air, With same acceleration due to gravity, they fall at Same time

Answer 2

so here is your answer...
when we vaccum the acceleration produced in freely falling bodies is the same and it does not depend on the mass of the falling body.
so,let me clear it ..
from the Galileo concluded that the acceleration of an object falling freely towards the earth does not depend on mass of object .During free fall the heavier objects as well as lighter objects accelerate at the same time.that's why they both touch the ground at same time.
hope it will help you