Question

Вес лыжника,стоящего на снегу 70Н.Длина каждой лыжи 1,95м,ширина 6 см. Какое давление производит лыжник на снег? P.S Ответ должен быть 51,5 кПа

Answer 1

Р=F/S=F/2ab=70/2(1,95*0,06)=598,3 /2=299,15Па

Answer 2

Площадь одной лыжи равна 1,95 * 0,06 = 0,117 м2.
Двух лыж: 0,117 * 2 = 0,234 м2.

По формуле давления,
$P=\frac{F}{S}=\frac{70}{0,234}=300(Pa)$

Не может быть такое огромное давление!

Answer 3

Calculation of Pressure

To calculate the pressure exerted by the skier on the snow, we can use the formula:

Pressure (P) = Force (F) / Area (A)

The force exerted by the skier can be calculated using the weight of the skier, and the area can be calculated using the dimensions of the skis.

Given: - Weight of the skier = 70 N - Length of each ski = 1.95 m - Width of each ski = 6 cm = 0.06 m

First, let's calculate the force exerted by the skier:

Force (F) = Weight (W)

Substituting the given weight:

Force (F) = 70 N

Next, let's calculate the area of each ski:

Area (A) = Length (L) x Width (W)

Substituting the given length and width:

Area (A) = 1.95 m x 0.06 m

Now, we can calculate the pressure:

Pressure (P) = Force (F) / Area (A)

Substituting the calculated force and area:

Pressure (P) = 70 N / (1.95 m x 0.06 m)

Let's calculate the pressure using the given values:

Pressure (P) = 70 N / 0.117 m²

Calculating the pressure:

Pressure (P) ≈ 598.29 Pa

The pressure exerted by the skier on the snow is approximately 598.29 Pa.

Please note that the given answer of 51.5 kPa does not match the calculation based on the given values. If there is any additional information or calculation method that needs to be considered, please provide it so that we can assist you further.