2. A rod is made up of elements 1 and 2, each having a length of L and cross-sectional area A. Element 1 has an elastic modulus of E1, and element 2 has a modulus of E2, with E₂ > E₁. Let F₁ and F2 represent the axial load carried by elements 1 and 2, respectively. Circle the correct answer below. (1) F₁F2| P |F₁|=|F2| |F₁ F2| (2) E₂ B A L

Four axially loaded members are shown below. All members have the same value for E (Young’s modulus) and for ν (Poisson’s ratio).

Q2 Two members AB and AC are made of material with E= 102 Gpa and each member has cross sectional area of A= 489 mm2. The members are used to support bar BC. If P=811 N, L1= 202 mm , L2= 313 mm and L3= 443 mm . Answer the following questions. D L3 E B L1 L2 The tension in member AB= Your answer The tension in member CDD

This arm is attached to a wall on the left. The right end is free hanging. Each section is 2.0m wide and 3.0m high. If the force at the end of the arm is F = 200.0N, what is the force in member 9? Use the Method of Sections. Use a positive number if it is in tension and a negative number if it is in compression.

The truss below is subject to the loads as shown. All of the members are attached at plates and can be treated as pin connected. The truss is attached to the ground at a pin joint at G and a roller at D. The applied load H is 335 N. The applied load Jis 211 N. What is the internal resultant normal force in member CD in N? (tension is positive, compression is negative) E F G A 3 m B |● ● H] 3 m 3 m D 5 m