A skier of mass 68 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 55 m up a 30 slope (assumed frictionless) at a constant speed of 2.2 m/s? 13,328 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. k] (b) What power (expressed in hp) must a motor have to perform this task? 1.2 Your response differs from the correct answer by more than 10%. Double check your calculations. hp