A copper bar of a diameter of 20mm and a length of 1.6m is rigidly fixed to a bracket as shown in Fig. 1.55. The other end of the collar rests on a support. A mass of 20kg moving horizontally along the bar at a velocity of 1.5m/* is brought to rest by a collar at the other end. The bracket deflects horizontally by 0.05mm/kN of the tensile force induced in the bar. Calculate the maximum tensile stress developed in the bar. E = 105kN/mm2.
