Consider (Figure 1). For a short period of time, the motor turns gear A with a constant angular acceleration of αA = 4.5 rad/s^2, starting from rest. The cord is wrapped around the drum D which is rigidly attached to gear B. Part A: Determine the velocity of the cylinder in three seconds. Express your answer to three significant figures and include the appropriate units.   Part B Determine the distance the cylinder travels in three seconds. Express your answer to three significant figures and include the appropriate units.

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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.