Question

Пожалуйста помогите срочно решить сейчас срочно нужно проверить!Автомобиль массой 1500 кг за 1 минуту увеличил скорость с 54 до 72 км/ч .Найти силу тяги если коэффициент сопротивления движению равен 0,02

Answer 1

Так, решение, надеюсь, видно
P.S. правильно пишется "почерк"

Answer 2

Calculation of Tractive Force

To calculate the tractive force, we can use the formula:

Tractive Force = Mass * Acceleration

Given: - Mass of the car = 1500 kg - Initial velocity = 54 km/h - Final velocity = 72 km/h - Time taken = 1 minute

First, we need to convert the velocities from km/h to m/s:

Initial velocity = 54 km/h = 15 m/s Final velocity = 72 km/h = 20 m/s

Next, we need to calculate the acceleration using the formula:

Acceleration = (Final velocity - Initial velocity) / Time taken

Acceleration = (20 m/s - 15 m/s) / 60 s = 0.0833 m/s^2

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

Tractive Force = Mass * Acceleration = 1500 kg * 0.0833 m/s^2

Calculating the tractive force:

Tractive Force = 124.95 N

Therefore, the tractive force required for the car to increase its speed from 54 km/h to 72 km/h in 1 minute, with a coefficient of resistance to motion of 0.02, is approximately 124.95 N.

Please note that the coefficient of resistance to motion provided in the question is not used in the calculation of the tractive force. If you need further assistance, feel free to ask.