A skier (of mass 55 kg) skies down the smooth (friction less) ski slope illustrated in the cross-sectional diagram: She pushes off at the top with a speed of 10m/s. At the bottom (0m), she comes to a stop by digging her skis in sideways. Use the algebraic expression of energy conservation that shows that the sum of all the energies at all points in time is constant and equal to the total energy for the following: (b)  Write an algebraic representation expressing energy conservation that you could use to find the speed of the skier when she is on the middle flat part (at the height 10 m)

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