The mechanism shown is used in a distribution center to push boxes along a platform. The input link is driven by an electric motor which, at the instant shown, has a speed of 25 rad./s and accelerates up to 500 rad./s2. If the input link is 250 mm long and forms a 40 degree angle with the horizontal, determine the instantaneous acceleration of the input link end at the position shown (Point A).

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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.