1. The problem statement, all variables and given/known data I have 3 graphs: accleration vs. total mass, acceleration vs. mass difference, and acceleration vs. inverse total mass. How can I get the gravitational acceleration from these 3 graphs ? I am doing a lab report on word and excel 2. Relevant equations I don't think there is one, may be it will be the slope ?? 3. The attempt at a solution I think finding the slope of those graphs ? But what wil be the relationship between slope and gravitational acceleration ?