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A 2,444-kilogram roller coaster car starts at point A almost at rest. It first runs downhill and then is approaching a hill. At its top, the hill can be described by a circle with radius 10 m.
Find the height required at point A, such that the normal force acting on the car in point B is 55% of the weight.
Make sure to practise how to explain your work and also how to evaluate your result. Draw proper diagrams to support your work.
Below answer with the height.
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