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The uniform rod of length L, cross-sectional area A, mass density p, and modulus of elasticity E is rotating in horizontal plane about a

The uniform rod of length L, cross-sectional area A, mass density p, and modulus of elasticity E is rotating in horizontal plane about a vertical axis through one end. When the rod is rotating at a constant angular velocity of o rad/sec, show that the elongation of the rod is pw?L?

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