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As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted on the floor by the heel if it has an area of 1.50 $\mathrm{cm}^{2}$ and the woman's mass is 55.0 $\mathrm{kg}$ . Express the pressure in Pa. (ln the early days of commercial flight, women were not allowed to wear high-heeled shoes because aircraft floors were too thin to withstand such large pressures.)

$3.59 M P a$

Physics 101 Mechanics

Chapter 11

Fluid Statics

Fluid Mechanics

Azwan Z.

July 28, 2021

a) Determine how much compressive stress is present on the L1-L2 intervertebral disc when a person with mass 63 kg stands in anatomical position. Assume that approximately 45 % of body weight is supported by this disc.

University of Washington

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McMaster University

Lectures

03:45

In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids.

09:49

A fluid is a substance that continually deforms (flows) under an applied shear stress. Fluids are a subset of the phases of matter and include liquids, gases and plasmas. Fluids display properties such as flow, pressure, and tension, which can be described with a fluid model. For example, liquids form a surface which exerts a force on other objects in contact with it, and is the basis for the forces of capillarity and cohesion. Fluids are a continuum (or "continuous" in some sense) which means that they cannot be strictly separated into separate pieces. However, there are theoretical limits to the divisibility of fluids. Fluids are in contrast to solids, which are able to sustain a shear stress with no tendency to continue deforming.

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As a woman walks, her enti…

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Suppose that a woman weigh…

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$\bullet$ A petite young w…

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A 50.0 -kg woman balances …

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A $50.0-\mathrm{kg}$ woman…

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Estimate the pressure exer…

we're told that we have a woman wearing high heeled shoes and her entire weight is momentarily placed on one of the heels. As she walks. You want to calculate the pressure exerted on the floor by the hell if it has a area of 1.5 cubic centimeters and the women's mass is 55 kilograms. So the area is 1.5 cubic centimeters, or 1.5 times 10 to the minus four kind of minus fourth cubic meters. The mass is 55 kilograms. Her weight then, is 539 Newtons, and the pressure is simply their weight divided by the area. So 539 Newton provided by 1.5 times 10 to the fourth meters keep squared, and that gives us 3.6 times 10 to the sixth Pascal's or 3.6 mega pass scales.

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