    entence 1; On the surface of the  arth, the acceleration of gravity is  math]9.81 m/{s\2}[/math]. If you  re 2 earth radius away from earth's  enter, wouldn't the acceleration of    ravity be half?    entence 2: Why do all objects,  egardiess of their masses, accelerate  t 9.81 MSA-2 during free fall? Why    re they solely influenced by gravity  ut not mass?