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An engine of mass 20 tons pulls a train of 20 wagons, each of mass 20 tons with constant velocity of 72km/hr. If coefficient of kinetic friction of track is 0.01,find power delivered by engine................ . .Please provide the complete answer

An engine of mass 20 tons pulls a train of 20 wagons, each of mass 20 tons with constant velocity of 72km/hr. If coefficient of kinetic friction of track is 0.01,find power delivered by engine................ . .Please provide the complete answer

Grade:12th pass

2 Answers

akash
20 Points
5 years ago
here accleratoin is  0 because velocity is constant, hence force is zero then power will also be zero,
use some common sense before questioning
Pawan joshi
26 Points
5 years ago
But answer is not coming zero...... Maybe the word 'constant ' is misplaced in my book.... can you please solve it again without considering constant term

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