physics
An engine pulls a train 1km over a level track.Calculate the work done by a train given that frictional resistance is 5*100000N
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The work done by the train is equal to the force of friction multiplied by the distance traveled: Work = Frictional force x Distance Work = (5 x 10^5N) x (1000m) Work = 5 x 10^8J (5 billion joules)
