A roller skater(mass m) swoops over a hill top moving at 5.00m/s that is 10m above a breaking zone, he rushes down the hell then rolls uphill on a second smaller hill gaining back half the height that he lost so he is 5 m above the lowest level. He now enters a horizontal breaking zone where the coefficient of kinetic friction is 0.900 A) use the conservation of energy to find his speed at the bottom of the hill before he rolls up the next smaller hill (hint: draw diagram showing 2 hills and your chosen ground level) b) use the conservation of energy to find how far he goes through the horizontal breaking zone before he is brought to rest by friction converting mechanical energy into heat

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