Question

Why does water fall?
Why does going up the slope (or stairs) take more effort than going down?​

Answer 1

Answer:

1. The work running or walking up the stairs is equal. Since the mass of the student and the height of the stairs is constant then the work is constant.

Explanation:

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Answer 2

Answer:

Often, waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls.

We experimented and felt easier to climb. Why is it walking backward in uphill easier? ... Our legs are designed for power more than ease of motion, so walking up a slope forwards can be more tiring or slower if we do so in a way that relies on our strength instead of a more efficient alignment.

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