General Physics Question?

1 ⤊

General Physics Question?

What pressure does a 150 pound woman exert on the floor when she balances herself on just one of her heels? Note that her heels have an average radius of 0.8 inches.

2007-03-11 11:35:35 · 3 answers · asked by help_with_physics 1 in Science & Mathematics ➔ Physics

3 answers

pressure = force / area

calculate the area of her heels (for both heels)
divide weight by this area to get force

2007-03-11 11:42:36 · answer #1 · answered by physandchemteach 7 · 1⤊ 0⤋

She's pushing down with 150 lbs.
Her heel has an area of pi(r^2) = 2 sq inches (I got 2.01...)
So the pressure is 75lbs/sq in.

2007-03-11 11:40:36 · answer #2 · answered by Phaedrus 3 · 0⤊ 0⤋

Area of heal = pi*0.8^2 = 2.01 inches square

Presure = weight/area = 150/2.01 = 74.6 lbs/sq. inch

2007-03-11 11:40:00 · answer #3 · answered by The Yeti 3 · 0⤊ 0⤋