A skier of mass 69.7 kg is pulled up a slope by a motor-driven cable.
(a) How much work is required to pull him a distance of 59.8 m up a 29.9° slope (assumed frictionless) at a constant speed of 1.90 m/s?
(b) A motor of what power is required to perform this task?
(a) w=f*change in distance*cos angle
(b) power=work/change in time
The Attempt at a Solution
gravity is the only force in play. so the equation for work would be
take that value and divide it by change in time to get power