# A locomotive with a power of 600 W, moving evenly, travels 200 m in 20 seconds. What is the traction force?

August 31, 2021 | education

| Power with uniform movement of the locomotive and constant value of force can be calculated by the formula:

N = A / t, where N is the power of the locomotive (N = 600 W), A is the work done by the locomotive (A = F * S, where F is the traction force of the locomotive, S is the path traveled by the locomotive (S = 200 m) ), t is the time of movement of the locomotive (t = 20 s).

Then:

N = A / t = F * S / t.

Let us express and calculate the traction force of the locomotive:

F = N * t / S = 600 * 20/200 = 12000/200 = 60 N.

Answer: The traction force of the locomotive is 60 N.

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