A bar of rectangular cross section is loaded and supported as shown in the figure. The distance between supports is L= 1.5 m, and the height of the bar is h =120 mm. The deflection at the midpoint is measured as 3.0 mm. What is the maximum normal strain ε at the top and bottom of the bar?
![1789_434ea4f9-9d9a-41ed-975f-3e1047a6ad11.png](https://secure.tutorsglobe.com/CMSImages/1789_434ea4f9-9d9a-41ed-975f-3e1047a6ad11.png)