The car has traveled a distance s = 1.0 km. Traction force of the car engine F = 800H.

The car has traveled a distance s = 1.0 km. Traction force of the car engine F = 800H. What work has been done by the thrust force of the engine.

In physics, work is a quantity that is numerically equal to the product of force and the distance traveled. If we write the definition in the form of a physical formula, then it turns out as follows: A = F * S, where A is work, F is force, S is the distance traveled.
We substitute the values given by you and solve the problem. A = F * S, F = 800H, S = 1 km, but in physics it is customary to translate the path into meters, therefore it is equal to 1000 meters. A = 800N * 1000m = 800000J = 800kJ.



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