At the instant θ = 60∘, link CD has an angular velocity ωCD = 4 rad/s and an angular acceleration αCD = 3 rad/s2. The collar at C is pin connected to DC and slides over B as shown in (Figure 1). A) Determine the magnitude of the angular velocity of rod AB at this instant. B) Determine the magnitude of the angular acceleration of rod AB at this instant.

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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.