Question

Зная свою массу и площадь ботинка,вычислите,какое давление вы производите при ходьбе и стоя на месте.Указание.Площадь опоры ботинка определите следующим образом.Поставте на лист клетчатой бумаги и обведите контур той части подошвы,на которую опираеться нога.Сосчитайте число полных квадратиков,попавших внутрь контура,и прибавте к нему половину числа неполных квадратиков,через которые прошла линия контура.Полученное число умножте на площадь одного кводратика(площадь квадратика 1/4см(в квадрате)и найдите площадь подошвы! Сосчитала полных 721, а неполных 93. вес 47. Пожалуйста очень срочно!

Answer 1

Ответ 78............

Answer 2

Calculating Pressure from Body Weight and Shoe Area

To calculate the pressure exerted while walking or standing, we can use the formula P = F/S, where P is the pressure, F is the force (in this case, the body weight), and S is the area of contact between the shoe and the ground.

First, we need to determine the area of contact of the shoe. This can be done by placing the shoe on a sheet of graph paper and counting the squares within the outline of the sole. The number of full squares and half squares within the outline is used to calculate the area of contact.

Using the provided numbers, the area of contact is calculated as follows: - Full squares: 721 - Half squares: 93 - Area of one square: 1/4 cm^2

The total area of contact S1 is calculated as: S1 = (721 + (93/2)) * (1/4) = 103.7 cm^2

Now, we can calculate the total area of contact with both shoes: S = 2 * S1 = 2 * 103.7 = 207.4 cm^2

Next, we can calculate the pressure exerted while standing and walking using the formula P = F/S: - Given weight (mass) m = 47 kg - Acceleration due to gravity g = 9.8 m/s^2

1. Pressure while standing: P = m * g / S1 = 47 * 9.8 / 0.01037 = 44,751.44 Pa

2. Pressure while walking: P = m * g / S = 47 * 9.8 / (2 * 0.01037) = 22,375.72 Pa

Therefore, the pressure exerted while standing is approximately 44,751.44 Pa, and while walking is approximately 22,375.72 Pa.

These calculations are based on the provided data and the formula for pressure. If there are any additional details or specific requirements, feel free to ask for further assistance!