1. The problem statement, all variables and given/known data Zeke begins to slide down a snow hill on a rubber mat. Zeke's mass is 76 kg and that of the mat is 2kg. 2. Relevant equations Disregarding frictional forces, how fast are they moving when they are 1.2 m below the crest? 3. The attempt at a solution v=(square root)2gh v=(square root)(2)(9.8)(-1.2) v=4.85 m/s I don't think this is even close to being right, as a friend who I just got done talking to (and is 10x smarter than me) said he got a completely different answer. By the way, hello everyone! I just signed up, hoping to learn to understand physics better.