The Young's modulus

The Young's modulus of a material measures its resistance to deformations caused by external stresses. In a vertical wall, a solid mass of specific mass ρ and Young's modulus ε, in the form of a straight parallelepiped, whose dimensions are indicated in the figure, is embedded. Based on the correlations between physical quantities, mark the alternative that best expresses the vertical deflection suffered by the free end of the solid by the action of its own weight.

3ρg(a²)²/(2εh²) 3ρga²/(2εh) 3ρg(a²)²/(2εh) 3ρga²/(2εh²)

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