The cam is designed so that the center of the roller A which follows the contour moves on a limaçon defined by r = b - c cos θ, where b = 450 mm and c = 205 mm. If the cam does not rotate, determine the magnitude of the total acceleration of A when θ = 75° if the slotted arm revolves with a constant counterclockwise angular rate θ˙ = 2.9 rad/s.

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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.