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A toboggan approaches a snowy hill moving at 12.4 m/s. The coefficients of static and kinetic friction between the snow and the toboggan are 0.400 and 0.290, respectively, and the hill slopes upward at 44.0 degrees above the horizontal. What is the acceleration of the toboggan going up the hill? and the acceleration after it has reached its highest point and it sliding downhill?

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