The MDF sheet shown in the figure below iscut by a laser pointer, which moves through the curved groove. Your distance in  meters measured along the slot is given by s = 9t2– 2t, with t in seconds. The laser is at A at time t = 0.2 s and at B when t = 3.0 s. Determine to two decimal places of precision: a) the magnitude of the average acceleration between A and B; b) the average vector acceleration between A and B.

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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.