1. The problem statement, all variables and given/known data Two people are standing on a very light board that is balanced on a fulcrum. The lighter person suddenly jumps straight up at . Just after he jumps, how fast will the heavier person be moving? 2. Relevant equations M1*(Vf1) + M2*(Vf2) = M1(Vi1) + M2(Vi2) 3. The attempt at a solution I tried using this equation but I did not get a likely solution I think I should include the distance that the two man are apart but I do not know what to do with that.