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20-12-2022
Physics

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a ski jumper starts from rest from point a at the top of a hill that is a height h1 above point b at the bottom of the hill. the skier and skis have a combined mass of 80 kg. the skier slides down the hill and then up a ramp and is launched into the air at point c that is a height of 10 m above the ground. the skier reaches point c traveling at 42ms. (a) calculate the height h1.

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