1. The problem statement, all variables and given/known data A parachutist experiences an air friction force of 150 N and an acceleration of 7.9 m/s^2. What is the combined weight of the parachutist and the parachute? 2. Relevant equations None. 3. The attempt at a solution a= (Fg-Ff)/(m) 7.9 = (mg-Ff)/(m) 7.9 = (m(9.8)-(150N))/(m) And that is as far as I could go. I thought I was using the right formula but I do not know for sure. Thanks.