A T-bar is sometimes used to lift skiers up a mountain. The skiers are supported by a T- shape bar which pulls them up the mountain. The T-bar is spring loaded so provide the appropriate amount of force, and the springs tend to remain at the same length once the skier moves at constant velocity. For a section where the 65 kg skier moves with a constant speed of 5.00 m/s for 40 s along the 25 slope, how much work is done by the T-bar motor How much power was needed? To save you some work, I have done the calculations with the normal force to find that the friction between the skier and slope is 68.2N. www spring 45 25