The tractor pulls the plow with a force of 36 kN. What is its power if it covers 1.8 km in 15 minutes?

We will translate the distance, which is equal by the condition of 1.8 kilometers, from kilometers to meters:

1.8 kilometers = 1000 * 1.8 = 1800 meters.

Let’s translate the time it takes a tractor to overcome 1.8 kilometers from minutes to seconds:

15 minutes = 60 * 15 = 900 seconds.

Let us determine what, in this case, the speed of this tractor will be equal to:

1800: 900 = 2.

Let us determine what the power of its engine will equal, when from the condition of the task we know that the thrust force is 36 kN:

P = F * v;

36 * 1000 * 2 = 72000.

Answer: 72000 W.