The circular disk of 180-mm radius rotates about its z-axis at the constant speed p=2257 rev/min, and arm OCB rotates about the Y- axis at the constant speed N = 33 rev/min. Determine the velocity VA and acceleration aд of point A on the disk as it passes the position shown. Use reference axes x-y-z attached to the rotating disk. 165 mm Answers: Р VA= | aA = (i 345 mm 180 mm i+ i ! i+ 0 j+ i j+ ! k) m/s k) m/s²

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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.