An elephant weighs 60000 N. It stands on four feet. Each foot has an area of 0.1 m2 .
i) Calculate the total area of elephant's feet. [1]
ii) Calculate the pressure the elephant exerts on the ground. [1]
iii) If the elephant lifts one foot off the ground, calculate the pressure it now exerts on the ground. [2]
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i) the total area of elephant's feet:
Total feets of an elephant =4
Each foot's area = 0.1 m²
Total area = 4*0.1
=0.4m²
ii) the pressure the elephant exerts on the ground:
Pressure= force/total area
Given force=60000 N
total area =0.4m²
Pressure=150000 N/m²
iii) If one foot of the elephant is up then the total area:
= 3*0.1= 0.3 m²
Pressure= force/total area
Given force=60000 N
total area =0.3 m²
Pressure=200000N/m²
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