An injection-moulded part is made with polypropylene reinforced with 15% glass fibres. The part is failing in tension during use. You examine the fracture surface of the part and see the following. Fig.2 - Scanning electron microscope photo of bundles of glass fibres seen at a fracture surface. Comment on what can be done to improve the tensile properties of the part. In your analysis, comment on all aspects of the problem: polymer, glass properties, glass level, and compounding