Two identical slender rods AB and BC (MAB = mBc = 1.5 kg) are welded together to form an L shaped assembly. The assembly is pressed against a spring at D and released from the position shown (Position 1). The assembly then passes through the position where rod AB forms an angle of 60° counterclockwise from the horizontal (Position 2). Knowing that the maximum angle of rotation of the assembly in its current motion is 90° counterclockwise (Position 3), answer the following. B A n 0.4 m

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Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.