Question

if we release two objects with different massses in vaccum with from same heights , is that objects fall at same time , Although Objects are with different masses ?????​

Answer 1

Answer: Nope. First, they can't have the same gravitational force because they have different masses.. Since both the acceleration AND the gravitational force depend on the mass, the mass cancels. Objects fall with the same acceleration—if and only if the gravitational force is the only force.