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Physics, 11.03.2021 08:50 keasiabradley
A railway engine waiting 40 metric ton is travelling along a level track at a speed of 54 km/hr. The additional power required to maintain the speed up an inclined plane of 1 in 49 is​
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A railway engine waiting 40 metric ton is travelling along a level track at a speed of 54 km/hr. The...
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