Question: A train weighing 1 3 0 tonnes moves down a slope of 1 in 2 0 0 at 2 0 km / hr and the

A train weighing 130 tonnes moves down a slope of 1 in 200 at 20 km/hr and the engine develops 40 HP . What horsepower will be required to pull the train up the slope at the same speed?
[Ans,151]
A train weighing 1 3 0 tonnes moves down a slope

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