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2 Ski jumping A ski jumper of mass 70 kg is attempting to launch off the ramp below with a velocity of v=90km/h that points h

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K.E 2Ox (25) X 2 875 J At A b) Stuu s kien at A at rert Ел At to tal at Siue vB= 25mys C Lonseavalion eneng. 2. 2 2S x 25 Sca

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