5.4 Harder questions on Pressure
07 October 2011
16:30
· Collins, p.107, Q.4.
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ANSWER
Shoe heel:
p = F / A
p = 400 / (0.05 x 0.05)
p = 160 000N / m2
Elephant:
p = F / A
p = 5000 / (pi x 0.1^2)
p = 159 155 N / cm2
High-heel shoe:
p = F / A
p = 400 / (1/20000)
p = 8 000 000 N / m2
Which ones will damage a floor that yields at a pressure of 4000 kPa?
High - heel shoe ONLY
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