1. The problem statement, all variables and given/known data What is the mass of the meter stick, which is shown in the sketch below while it is balanced? http://img252.imageshack.us/img252/9819/problemeo4.jpg [Broken] a 160 grams b 120 grams c 80 grams d 200 grams e none of the above 2. Relevant equations 3. The attempt at a solution I am completely CONFUSED! Our professor never discussed finding the mass of the lever.