Use a ruler to measure the dimensions of the sole of one of your shoes in centim
ID: 1654269 • Letter: U
Question
Use a ruler to measure the dimensions of the sole of one of your shoes in centimeters. Being as accurate as possible, calculate an estimate of the surface area of the sole. (If planimeter is available, use it to more accurately assess surface area by tracing around the perimeter of the sole.) Knowing your own body weight, calculate the amount of pressure exerted over the sole of one shoe. How much change in pressure would result if your body weight changed by 22 N (5 lb)?Help please! I don't even know where to begin. Thank you Use a ruler to measure the dimensions of the sole of one of your shoes in centimeters. Being as accurate as possible, calculate an estimate of the surface area of the sole. (If planimeter is available, use it to more accurately assess surface area by tracing around the perimeter of the sole.) Knowing your own body weight, calculate the amount of pressure exerted over the sole of one shoe. How much change in pressure would result if your body weight changed by 22 N (5 lb)?
Help please! I don't even know where to begin. Thank you
Help please! I don't even know where to begin. Thank you
Explanation / Answer
Pressure = Force / Area
Surface area of sole = 120 cm^2 = 120*10^-4 m^2
Weight = 60*9.81 = 588.6 N
Pressure on 1 sole = 588.6 / 2*120*10^-4 = 24525 Kg/m^2
If body weight changed 22 N
P' = 610.6*10^4 / 2*120 = 25441.67 Kg/m^2
Change = 916.67 kg/m^2
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