Q.1
14 MarksA vertical steel rod of uniform diameter, 3.0m long is rigidly secured at its upper end and a weight of 2 kN is allowed to slide freely on the rod through a distance of 25mm on to a collar at the lower end of the rod. Calculate the diameter of the rod, if the maximum strain is not to exceed 1/1600. Take E = 2 X 10⁵N/mm².
