1. The problem statement, all variables and given/known data After crossing the patch of soft snow, the skier hits a snowdrift and penetrates a distance 2.1 m into it before coming to a stop. What is the average force exerted on her by the snowdrift as it stops her? 2. Relevant equations TE(initial) = TE(final) 3. The attempt at a solution TEi = TEf Kei + Pei = Elastic Energy + Kef (Pei = zero) 1/2mv^2 =1/2kx^2 k = mv^2/x^2 k = 14583.3 F=-kx^2 F=64312.353N This is not correct; the correct answer is 4210N. Apparently you can use the Work Energy Theorem in order to determine this value. I am not sure how though. Please assist in helping me understand.