Task id16919

In case of elastic tension (or compression) of the rod, Hooke’s law is valid, which can be written by analogy with the formula of the previous problem with the replacement of the modulus of uniform compression K by the Young’s modulus E. Write this formula and express the stiffness of the rod in terms of its dimensions. 20.1. An aluminum cube with an edge of 1 cm is subjected to all-round compression. What force is applied to each face if the volume decreases by one percent?