Question

Мальчик массой 44 кг стоит на лыжах длина каждой лыжи равна 1,3 метра ширина равна 8 сантиметров какое давление оказывает мальчик на снег округлите до целого значения

Answer 1

Давление это: p=F/S. Масса 44 кг, ширина 8 см, длина 1,3 м. Площадь находим по формуле: l*h. Площадь равна: 1,3*8=10,4 см 2=0,104 м 2. F=P. P=m*g. Тогда вес тела равен: 44 кг*10 Н/м. Вес тела равен: 440 Н. Давление равно: 440 Н /0,104 м 2=4230,7 Па.= 4231 Па.

Как я перевел: 10,4/10000=0,104

Answer 2

Calculation of Pressure

To calculate the pressure exerted by the boy on the snow, we need to use the formula:

Pressure = Force / Area

The force exerted by the boy is equal to his weight, which can be calculated using the formula:

Weight = Mass * Gravity

Given that the mass of the boy is 44 kg, we can calculate his weight using the acceleration due to gravity, which is approximately 9.8 m/s^2.

Weight = 44 kg * 9.8 m/s^2

Now, we need to calculate the area over which the force is distributed. The area can be calculated by multiplying the length and width of each ski.

The length of each ski is given as 1.3 meters, and the width is given as 8 centimeters. We need to convert the width to meters by dividing it by 100.

Width = 8 cm / 100 = 0.08 meters

Now, we can calculate the area of each ski:

Area = Length * Width = 1.3 meters * 0.08 meters

Finally, we can calculate the pressure exerted by the boy on the snow by dividing the weight by the total area of both skis.

Pressure = Weight / (2 * Area)

Let's calculate the pressure using the given values:

Weight = 44 kg * 9.8 m/s^2 = 431.2 N (Newtons)

Area = 1.3 meters * 0.08 meters = 0.104 square meters

Pressure = 431.2 N / (2 * 0.104 square meters) = 2076.92 Pa (Pascals)

Rounding to the nearest whole number, the pressure exerted by the boy on the snow is approximately 2077 Pa.

Please note that this calculation assumes that the weight of the boy is evenly distributed over the area of both skis.