If anyone can help this physics novice out, I have been working on these problems for about a week. I just started looking at my old engineering Physics books and physics books, trying to brush up.... so if you can help, here are the 3 questions: 1. A sled of mass 10 kg is held in place on a frictionless 25 degree slope by a rope attached to a stake at the top. The rope is parallel to the slope. What is the tension in the rope. 2. An elevator weighing 25,000 N is supported by a steel cable. What is the tension in the cable when the elevator is being accelerated upward at a rate of 2 m/s^2. (g = 9.8 m/s^2) 3. A Ferris wheel has radius 5.0 m and makes one revolution in 8 seconds. A person weighing 670 N is sitting on one of the benches attached at the rim of the wheel. What is the apparent weight (the the normal force exerted on her by the bench) of the person as she passes through the highest point of her motion?