In the early days of aviation, female passangers were not allowed to wear high-h
ID: 1396435 • Letter: I
Question
In the early days of aviation, female passangers were not allowed to wear high-heeled shoes inside the aircraft becasue the floors were too thin ito withstand high pressures? (Recall the material fracture stress concept!) As a person wearing hight-heeled shoes walks, entire weight is momentarily placed on one heel of the high- heeled shoes. If the shoe heel has an area of 1.50 cm^2 and the person weights 121 lb how large is maximal pressure on the floor? 550 lb/inch^2 631 lb/inch^2 521 lb/inch^2 210 lb/inch^2Explanation / Answer
Area = A = 1.5 cm2 = 1.5 / (2.54)2 in2 (since 1 inch = 2.54 cm)
A = 0.2325 in2
weight = F = 121 lb
pressure is given as ::
P = F/A
P = 121 / 0.2325
P = 521 lb/in2