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A railway engine weighing 40 metic ton i...

A railway engine weighing 40 metic ton is travelling along a level track at a speed of `54 km H^(-1)` What additional power is required to maintain the same speed up an incline of 1 in 49 Take `g = 9.8 m//s^(2)` and `u = 0.1` .

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120 kW
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