(5) A steel rod of diameter 30mm and length 1.5m is observed to start yielding when the length had become 1.504m. It's ultimate strength is given as 216KN/m². If its young Modulus of elasticity is 1.95X10⁸ KN/m². Determine the yield strength of the rod, load applied to the rod at rupture and length of the rod at rupture.​