To determine the original length of a slender rod given the normal strain and deformation experienced by the rod due to an applied axial load. rod AB is subjected to the loading of two blocks, each of weight W (and where we neglect the mass of the pulley). The loading creates a normal strain in the rod given by
epsilonz= 0.050z^(1/2)
where z is measured in centimeters. This strain corresponds to the total deformation in the rod given by \Delta_B = 4.70cm .
Determine the initial length of the rod, L, measured before the loading is applied