Question

A model stands on a scale and finds her weight to be 105 pounds. If

the pressure exerted by her feet on the scale is 2.16 pounds per
square inch, what is the area of her feet in cubic centimeters?
__cm2

Answer 1

The area = 313.612 cm²

Further explanation

Force (F) can cause objects to move

While pressure (P)is the force per unit area

`\tt P=(F)/(A)`

weight=force=105 pounds(lb)⇒english units

pressure = 2.16 lb/in²

Thea are (A)

`\tt A=(F)/(P)=(105)/(2.16)=48.61~in^2\\\\1~in^2=6,4516~cm^2\\\\48.61~in^2=313,612~cm^2`