1. A nylon thread is subjected to a 8.5 N tension force. Knowing that E = 70 GPa and that the length of the thread increase by 1.1%, determine (a) the diameter of the thread(b) the stress in the thread

2. A 2670 N tensile load is applied to a test coupon made from 1.5 mm flat steel plate (E = 200 GPa, v = 0.30). determine the result change(a) in the 50 mm gage length(b) in the width of portion AB of the test coupon(c) in the thickness of portion AB

3. A 25 mm square-cross-section bar of length 300 mm carries an axial compressive load of 50 kN. Determine the stress set up in the bar and its change when the load is applied. For the bar material E = 200 GN/m.

4. A 25 mm diameter bad is subjected to an axial tensile load of 100 kN. Under the action of this load a 200 mm gauge length is found to extend 0.19 x 10-3 mm. Determine the modulus of elasticity for the bar material.

5. The rod ABC is made of an aluminum for which E = 70 GPa. Knowing that P = 6 kN and Q = 42 kN, determine the deflection of (a) point A(b) point B