Question

Какое давление оказывает на снег лыжник массой 78 килограмм если длина каждой лыжи 1.95 метров а ширина 8 сантиметров

Answer 1

Вот смотри решение на фото

Answer 2

Calculating Pressure Exerted by the Skier on the Snow

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

Pressure = Force / Area

Where: - Force is the weight of the skier, and - Area is the area of contact between the skis and the snow.

Calculating Force Exerted by the Skier

The force exerted by the skier can be calculated using the formula:

Force = Mass * Acceleration

Given: - Mass of the skier = 78 kilograms - Acceleration due to gravity = 9.81 m/s^2 (standard value)

We can calculate the force exerted by the skier using the formula: Force = 78 kg * 9.81 m/s^2

Calculating Area of Contact between the Skis and the Snow

The area of contact between the skis and the snow can be calculated using the formula:

Area = Length * Width

Given: - Length of each ski = 1.95 meters - Width of each ski = 8 centimeters

We need to convert the width from centimeters to meters before calculating the area.

Conversion of Width from Centimeters to Meters

The width of each ski is 8 centimeters, which is equal to 0.08 meters (since 1 meter = 100 centimeters).

Calculating Area

Now, we can calculate the area of contact between the skis and the snow using the formula: Area = 1.95 meters * 0.08 meters

Final Calculation of Pressure

Now that we have the force exerted by the skier and the area of contact between the skis and the snow, we can calculate the pressure exerted by the skier on the snow using the formula: Pressure = Force / Area

Let's calculate the pressure using the given values.