Arm BC has a mass of 14 kg, and the moment of intertia about its center of mass is 2 kg m². Point B is sta- tionary. Arm BC is initially aligned with the horizontal X-axis with zero an- PeM см AL gular velocity and a constant couple M applied at B causes the arm to rotate upward. When it is in the position shown, its counter-clockwise angular velocity is 1.2 rad/s. Figure 3: PCM=0.21 m, 0=31° Determine M.

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Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.