course Phy231
4/1/10 10:50am
If the slope of a graph of number of paper clips needed to maintain equilibrium vs. ramp slope is 42 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 ( 23 cm/s2) / clip, then how many cm/s2 of acceleration should correspond to 1 unit of ramp
slope? If we require 46 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?
23*42=966cm/s^2
46*23=1058cm/s^2
I'm not sure about either of these answers. I was very confused by the question. I used my best judegment though.
Your best judement was correct. These problems are pretty straightforward, if (as you did) you just think about them and trust your judgement.