Question

what happens when the train goes up the hill​

Answer 1

Answer:

Hillclimbing is a problem faced by railway systems when a load must be carried up an incline. While railways have a great ability to haul very heavy loads, this advantage is only significant when the tracks are fairly level. As soon as the gradients increase, the tonnage that can be hauled is greatly diminished.

Explanation:

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Answer 2

What will be fell .