A ski lift has a one-way length of 1 km and a vertical rise of 200 m. The chairs are spaced 20 m apart, and each chair can seat three people. The lift is operating at a steady speed of 10 km/h. Neglecting friction and air drag, and assuming that the average mass of each loaded chair is 250 kg, determine the power required to operate this ski lift. Also, estimate the power required to accelerate this ski lift in 9 s to its operating speed when it is first turned on.   The power required to operate the ski lift is 68.125  Numeric ResponseEdit Unavailable. 68.125 correct.kW.   The power required to accelerate this ski life in 9 s to its operating speed is 38.84  Numeric ResponseEdit Unavailable. 38.84 correct.kW.

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.