PHYS 105 Pressure Activity Name: Date: 1. Remember that the formula for pressure is: Pressure [lbfinz] = Force [lb] 1 Area [in'] Calculate the following pressures: A. The pressure on your feet when you're standing on both feet. B. The pressure on your foot when you're standing on one foot only. c. The pressure on the ball of your foot if you're standing on tip-toe (or wearing high-heeled shoes) on one foot. D. The pressure on your lower thigh if you are wearing a leg prosthesis and are putting all of your weight on that prosthesis. You can assume for this part that your leg shape is circular the area is then Area = (circumference?! 12.6 Note: Here is how the formula above was derived, in case you are interested: For a circle: Area = 11': 1'2 And the circumference of a circle is this formula: C = 2m _ C If we solve that circumference formula for r, we get: T 5 Let's square this formula, and then we can stick it into the Area :3 equation above where the rsquared is: 1" = m Stick that into the area e nation and ou et: Am \"E q 3' g