Question

Автомобіль рухається рівномірно зі швидкістю 54 км/год, Сила руху двигуна 4000н. Знайти потужність двигуна яку роботу виконав двигун за 20 с руху?

Answer 1

Ответ:

Потужність Двигуна будет будет 3,400н

Answer 2

Calculation of Engine Power

To find the power of the engine, we can use the formula:

Power = Work / Time

In this case, we need to find the work done by the engine in 20 seconds. The work done can be calculated using the formula:

Work = Force x Distance

Since the car is moving at a constant speed, the distance covered can be calculated using the formula:

Distance = Speed x Time

Let's calculate the distance covered by the car in 20 seconds:

Distance = 54 km/h x (20 s / 3600 s/h) Distance = 0.3 km

Now, let's calculate the work done by the engine:

Work = 4000 N x 0.3 km Work = 1200 N km

Finally, let's calculate the power of the engine:

Power = 1200 N km / 20 s Power = 60 N km/s

Therefore, the power of the engine is 60 N km/s.