1. The problem statement, all variables and given/known data A skier starts from rest at the top of a large hemispherical hill. Neglect friction and show that the skier will leave the hill becoming airborne at a distance of h=R/3 below the top of the hill. R is the radius of the hemispherical hill. 2. Relevant equations Conservation of energy, balancing of forces, centripetal force = m(v2/r) 3. The attempt at a solution I know this has to do with when the normal force becomes zero (or at least that's what I think). But I have no idea how to start this; can anyone point me in the right direction?