If the slope of a graph of number of paper clips needed to maintain equilibrium vs. ramp slope is 91 clips / unit of ramp slope , and if the slope of a graph of the acceleration of a cart vs. the number of paper clips attached by a string and suspended over a pulley is ( 11 cm/s²) / clip, then how many cm/s² of acceleration should correspond to 1 unit of ramp slope?  If we require 81 clips to match the mass of the cart, then if we could apply this force to the cart without the extra mass of all those clips, what would be the acceleration of the cart?