The elevator starts from rest and moves upward with a constant acceleration. If the average counterweight W moves through 31.9 ft in 6.8s, determine the magnitude of the acceleration (ft/s2) of the elevator.

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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.