Question

Мальчик массой 50кг стоит на лыжах. Длина каждой лыжы 1,2м ширина 5см. Какое давление оказывается мальчик на снег

Answer 1

P = f/s
f= mg= 500H
s=ab= 0,06м²
p=500/0,06= 8333,3Па

Answer 2

Calculating Pressure Exerted by the Boy on the Snow

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

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

Where: - Force (F) = mass (m) * acceleration due to gravity (g) - Area (A) = the area in contact with the snow

First, let's calculate the force exerted by the boy on the snow.

The mass of the boy is 50 kg [[8 #8]]. The acceleration due to gravity is approximately 9.8 m/s^2.

Force (F) = mass (m) * acceleration due to gravity (g)

Force (F) = 50 kg * 9.8 m/s^2

Now, let's calculate the area in contact with the snow.

The length of each ski is 1.2 m and the width is 5 cm (or 0.05 m).

Area (A) = length * width

Area (A) = 1.2 m * 0.05 m

Now we can calculate the pressure.

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

Pressure (P) = (50 kg * 9.8 m/s^2) / (1.2 m * 0.05 m)

Pressure (P) ≈ 40750 Pascals

So, the pressure exerted by the boy on the snow is approximately 40750 Pascals.