Two solid cylindrical specimens, A and B, both de of a perfectly plastic material, are being forged with friction and isothermally at room temperature to a reduction in height of 25%. Originally, specimen A has a height of 2 in. and a cross-sectional area of 1 in.2, and specimen B has a height of is 1 in. and a cross sectional area of 2 in.2. Will the work do be the same the for the two specimens? Explain.