2.99
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The figure shows a beam of length L embedded in concrete walls. If a constant load W is distributed evenly along its length, the beam takes the shape of the deflection curve where E and I are positive constants. (E is Youngâ€™s modulus

of elasticity and is the moment of inertia of a cross-section of the beam.) Sketch the graph of the deflection curve.

W x* + WL? WL 24EI 12EI 24EI W