Question

Task 2: Context or problem solving using the skills learned Experimental test was conducted on a cantilever truss in mechanics laboratory and the following observations were made. A vertical load "P" is applied at free end of a cantilever truss (point 'C) as shown in figure 1. Length of AC and angle ABC are equal to Lacmm and angle o respectively. Members AC and BC are made up of materials plastic & steel respectively. Area and modulus of elasticity of plastic are Aplastic mm and Eplastie MPa respectively. Similarly, area and modulus of elasticity of steel are Astee mm and E stee! MPa respectively. Calculate the vertical displacement at free end by unit load method. Consider the limiting value of deflection as L1/300 and compare the deflection at C with the limiting value. Refer the attached data sheet for the values corresponding to your student number as shown i table 1. [10 Marks] astic rod L1 mm steel rod Figure 1: Deflection of a truss Table 1: Sample of data sheet C.S C.S Length Angle Area of Area ofEtartc AC in SİNo | Number Student Load'P ABC in in mm a mm2 mm -825 -- 1 39- 222 | 427 | 8701 | 200000 17 952 212 220 7647 188000 40
At which student number for both = 150021

Answer 1