5.4 Harder questions on Pressure

5.4 Harder questions on Pressure

07 October 2011

16:30

·         

Collins, p.107, Q.4.

4. 

SHOE 

pressure = f / surface area 

p = 500/ 0.0025m^2 

p = 160 000Pascals  

p = 160kPa

ELEPHANT 

p = f / SA 

p = 5000/ 314.159 

p = 160 kPa

HIGH HEELS 

p = f / SA 

p = 400 / 0.00005

p = 800 000 000 pascals 

p = 800 000 kPa