1. The problem statement, all variables and given/known data You are standing at the top of a cliff that has a stair step configuration. There is a vertical drop of 7 m at your feet, then a horizontal shelf of 9 m, then another drop of 3 m to the bottom of the canyon, which has a horizontal floor. You kick a 0.26 kg rock, giving it an initial horizontal velocity that barely clears the shelf below. What initial horizontal velocity v will be required to barely clear the edge of the shelf below you? How far from the bottom of the second cliff with the rock land? 2. Relevant equations d=Vi(t)+(1/2)(a)(t^2) 3. The attempt at a solution Cant seem to get around the problem without knowing more.