Very very urgent. Point C is the starting point of the ski and landing track and the landing track is built with a horizontal inclination of 30 degrees. Point A is the beginning of the ski jump point and is 4 m high from point C. The function of the sloping part of the jump run starting from point A is x = sqrt (h-y) Note: Ignore air resistance and friction in all questions. h: Runway height (height between A and B points) Skier's weight: 34 kg Calculate the reaction forces from the ground when the skier travels 1m horizontally after leaving point A from the standing state.

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Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.