physics

The acceleration due to gravity is the same for all bodies whatever their weight. We don't need to "accept" this, we can do experiments like people have done for hundreds of years. What you may be getting confused by is the fact that the force of gravity is stronger on heavier objects than lighter ones. Another way of thinking of this is to say that gravity has to pull harder on a heavy object than a light one in order to speed them both up by the same amount.

Thanks for that answer I like your last sentance it seems to explain the reason and that is why a larger object is heavier.

Contrex is correct. The force of gravity is stronger on more massive bodies, but their resistance to being accelerated is also greater, and by the same amount, so it all balances out.

How curious this is yet true. Thanks again.