Science and Mathematics for Engineering 6th Edition by John Bird

Exercise 35

Hooke's law states that stress is directly proportional to strain within the elastic limit of a material. When for brass the stress is $21 \mathrm { MPa }$ , the strain is $250 \times 10 ^ { - 6 }$ . Determine the stress when
the strain is $350 \times 10 ^ { - 6 }$ .