The 115-kg pendulum has a center of mass at Gand a radius of gyration about G of kc = 250 mm. Neglect the weight of the beam and the support. At the instant e = 90° the pendulum is rotating at w = 8 rad/s. 0.75 m 1m 0.6 m 0.6 m Part A Determine the z and y components of reaction on the beam by the pin A at the instant 0 = 90° using scalar notation. Express your answers using three significant figures separated by a comma. ANSWER: Ar. A, = kN Part B Determine the magnitude of the normal reaction of the roller B at the instant 0 = 90°. Express your answer to three significant figures and include the appropriate units. ANSWER: Ng =

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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.