physic
posted by steve on .
Calculate the pressure exerted on the ground by a79kg person standing on one foot. Assume that the bottom of the person's foot is 13cm wide and 28cm long.

Assume the footprint is a rectangle and divide the weight (Mg) by the area of that rectangle.

2.13

First convert the lengths from cm to m.
After that, you multiply them to find the area, and divide the weight by the area.
A=(0.13)(0.28)=0.0364
P=(75)/(0.0364)=2100 rounded
in scientific notation that equals
2.1*10^3 Pa