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

N = 600 W.
t = 20 s.
S = 200 m.
Fт -?
Power is determined by the formula: N = A / t, where A is the work performed, t is the time during which this work was performed.
The work performed by the locomotive is determined by the formula: A = Ft * S. Where Ft is the traction force of the train, S is the path the train travels.
N = Ft * S / t.
Fт = N * t / S.
Ft = 600 W * 20 s / 200 m = 60 N.
Answer: the traction force of the locomotive Fт = 60 N.