Freefall is the downward motion under the influence of gravity in other words when the only force acting on an object is gravity the object is said to be in freefall in vacuum that is in no air all objects in freefall accelerate at the same rate regardless of mass likewise a ball falling down with negligible air resistance. Freefall objects falling unaffected by air resistance owners we can’t fall without air resistance but for normal situation the numbers are realistic when things fall they constantly accelerate if we can ignore air resistance all objects excellent at the same rate that is at the acceleration due to gravity on earth at sea level.