The velocity of roller A is vA = 0.5 m/s to the right as shown, and this velocity is momentarily decreasing at a rate of 2 m/s2 . Determine the corresponding value of the angular acceleration of bar AB as well as the tangential acceleration (aB)t of roller B along the circular guide. The value of R is 0.6 m.

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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.