The formation of fibrocartilage is a common response to injury of hyaline cartilage. do you think fibrocartilage would provide an articular surface (i. e., the cartilage in joints) as smooth as the original hyaline cartilage? why or why not?

The answer is no, fibrocartilage cannot provide articular surface as smooth as the original hyaline cartilage.

This is because these two cartilages are different in composition (structure) and thus provide slightly different function.

Fibrocartilage is stiff and contains many collagen fibers type I and II, while hyaline cartilage is a soft cartilage that contains collage fibers type I. Fibrocartilage contains only few chondrocytes in lacunae, while hyaline cartilage has large number of them. As a result, fibrocartilage provide a restricted mobility, while hyaline cartilage enables smooth movements.