Question

Помогите. 7 класс. Тепловоз, развивая мощность 600 кВт, проходит в течении 20 с расстояние 200 м, двигаясь равномерно. Определите силу тяги тепловоза

Answer 1

найдём работу тепловоза  A = Pt = 600000*20 = 12000000

сила тяги найдём так F = A/S = 12000000/ 200 = 60000Н

Answer 2

Здравствуйте, LidaWhite!

 

Действуем так:

 

600000вт*20с/200м=60000 н

ответ: 60000 н 

 

Всегда Ваш, Kirillko

Answer 3

Calculation of the Tractive Force of the Locomotive

To determine the tractive force of the locomotive, we can use the formula:

Tractive Force (F) = Power (P) / Velocity (v)

Given that the power of the locomotive is 600 kW and it travels a distance of 200 m in 20 s, we need to calculate the velocity first.

To find the velocity, we can use the formula:

Velocity (v) = Distance (d) / Time (t)

Substituting the given values, we have:

Velocity (v) = 200 m / 20 s = 10 m/s

Now, we can calculate the tractive force using the formula mentioned earlier:

Tractive Force (F) = 600 kW / 10 m/s = 60 kN

Therefore, the tractive force of the locomotive is 60 kN.

Please note that the calculations are based on the given information and assumptions.