FOR 400 YEARS WE HAVE BELIEVED AND TAUGHT THAT OBJECTS FALL AT THE SAME RATE DUE TO GALILEO'S FAMOUS EXPERIMENT AT THE LEANING TOWER OF PISA. BUT NEWTON'S SECOND LAW, NEWTON'S LAW OF UNIVERSAL GRAVITATION, THE RULES OF ADDITON OF VECTORS AND THE ARTWOOD MACHINE PROVE THAT GALILEO WAS WRONG; OBJECTS DO NOT FALL AT THE SAME RATE AND g IS NOT COSNTANT.
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