1. The problem statement, all variables and given/known data We are given 2 hanging masses on opposite sides of a pully. masses and distance traveled in the time are given. We are required to find the acceleration of gravity 2. Relevant equations m1 (g+a)=m2 (g-a) 3. The attempt at a solution I found acceleration and have now changed weights w1 and w2 equal to m1g+m1a and m2g-m2a. I am having trouble solving for g. Could I get some help on how I do this? The answer is 9.7m/s^2 but do not know how to isolate g.