The wheel of radius r = 300 mm rolls to the right without slipping and has a velocity v, = 3 m/s, and an acceleration a, = 6m/s² of its center O, the length OA = r, = 200mm. a) Calculate a velocity of point A on the wheel for the instant at the angle 0 = 30°. b) Calculate an acceleration of point A on the wheel for the instant at the angle 0 = 30°. 200 mm e= 30° o= 3 m/s rÉ 300 mm

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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.