Force, Pressure, Tractions, and Stress Answer the following questions completely

Question

Force, Pressure, Tractions, and Stress

Answer the following questions completely and show ALL of your work.

1) The traction exerted by a 1 km high column of granite on one square meter is only about 3 to 5 times greater
than the traction exerted by a person standing on your fingernail. You will demonstrate this and calculate a more
exact relationship for the two tractions.

a) After several hot dogs at the WVU football game, Ben weighs around 170 pounds at sea level. Calculate
the traction associated with Dr. Shackleton stepping on your fingernail, assuming your fingernail is about
1 cm2 Use SI units and report your answers in MPa.

b) Now calculate the traction due to the 1 km high column of granite. Take the average unit weight of
granite as 2.667 x 10^4 N

Explanation / Answer

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