1. The problem statement, all variables and given/known data the spring in a typical hooke's law apparatus has a force constant of 1.50 N/m and a maximum extension of 10cm. what is the largest mass that can be placed on the spring without damaging it? 2. Relevant equations what i believe to be relevant: F=-kx W=F"d E=mg(h) 3. The attempt at a solution F=1.5(0.10) F=0.15 W=F"d W=0.15(0.10) W=0.015J 0.015=m(9.81)(0.10) 0.015/0.981=m m=0.0153kg <----------- answer now i have no idea how this can be wrong.. i have gone over it many times now. my textbook has it as 0.153kg. am i right on this one?