A 1262-kilogram roller coaster car starts at point a almost, Ask an Expert

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A 1,262-kilogram roller coaster car starts at point A almost at rest. It runs downhill into a valley. At its bottom, the valey can be described by a circle with radius 12 m.

Find the height required at point A, such that the normal force acting on the car in point B is 337% 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.

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