### Illustrate what speed is the ski traveling at bottom hill

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Q.  Skier loses a ski at the top of a 98 m hill. The ski proceeds to glide down the hill frictionless. What speed is the ski traveling at the bottom of the hill?

Q. A 1500 kg car drives around a flad 200-m-diameter circular track at 25 m/s. What are the magnitude and direction of the net force on the car? What causes this force?

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