1. The problem statement, all variables and given/known data A 50kg woman climbs a 3000m mountain high. a) how much work does she do against the gravitational forces? b) a kilogram of fat supplies 3.8 x 10^7 J of energy. If she converts fat into mechanical energy with a 20% efficiency rate, how much fat will she consume in the climb? 2. Relevant equations E= Einitial + Wa or K + U = Kinitial + Uinitial + Wa K= 1/2mv^2 and U=mgh thanks.. I really appreciate it.