A timber beam 100 mm wide by 300 mm deep is made by gluing three 100 mm x 100 mm member together. The beam is simply supported and has a span of 4 m. Determine the safe load P, in kN, that can be placed at mid span if the allowable shearing stress in the wood is and glue is 2.10 MPa and 1.40 MPa respectively.

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