1. The problem statement, all variables and given/known data A rock climber of mass 92.1 kg starts at the base of a cliff and climbs to the top (h = 33.8 m). He then walks along the plateau at the top for a distance of L = 289.9 m. (a) Find the work done by gravity. (b) What is the change in the gravitational potential energy of the rock climber. 2. Relevant equations Im still learning this stuff and am clueless thus far. 3. The attempt at a solution This is why i need help.. THANKS!