1. The problem statement, all variables and given/known data A person on a snow sled(total mass of 60.0kg) starts from rest at a vertical height of 24.0m above the bottem of the hill. If aconstant frictional force of 70.0 N opposes their motion as they slide down the hill and the length of the slope is 65.0m, whta is their speedat the bottem of teh hill? 2. Relevant equations PE = KE + W mgh = 1/2mv2 + 1/2kx2 3. The attempt at a solution (60kg)(9.8m/s2)(24m) = 1/2(60kg)v2 + 1/2(70N)(65m)2 14112 = 30v2 +147875 v=66.77m/s ??