A specimen is originally 300 mm long, has a diameter of 12 mm, and is subjected to a force of 2.5 kN. When the force is increased from 2.5 kN to 9 kN, the specimen elongates 0.225 mm. Determine (a) the modulus of elasticity for the material if it remains linear elastic, and (b) draw the stress-strain diagram of this test. (c) If this specimen is retested in a second round, determine the strain of the specimen when it is subjected to a force of 4.5 KN.

Problem 2: A specimen is originally 300 mm long, has a diameter of 12 mm, and is subjected to a force of 2.5 KN. When the force is increased from 2.5 kN to 9 kN, the specimen elongates 0.225 mm. Determine (a) the modulus of elasticity for the material if it remains linear elastic, and (b) draw the stress-strain diagram of this test. (c) If this specimen is retested in a second round, determine the strain of the specimen when it is subjected to a force of 4.5 kN. (a) (3 points) the modulus of elasticity = (b) (3 points) the stress-strain diagram c) (4 points) the strain of the 2" round = (c) (