Breaking stress is ______ for a material, but breaking force ____ and depends on _____________.
fixed, varies, material
variable, fixed ,area of cross section
varies, fixed, material
fixed, varies, area of cross section
Breaking stress is fixed for a material, but breaking force varies and depends on area of cross section.
A uniform heavy rod of length L, weight W and cross-sectional area A is hanging from a fixed support. Young's modulus of the material is Y. Find the elongation of the rod.