Asked by yo
Suppose a block of wood is placed under the left edge of the table.
How would the new slope affect the rate of erosion?
Where would most of the sand be deposited?
All Answers 1
Answered by
GPT-5 mini
AI
Raising the left edge increases the downstream slope, so the downslope component of gravity (and any flow velocity if fluid is moving across the sand) becomes larger. That increases the ability of the system to detach and transport grains, so the rate of erosion goes up compared with the flatter case.
Because transport is directed down the slope, most of the sand will be carried toward the lower (right) side and deposited where the transport energy drops — i.e. at the toe of the slope or wherever the surface flattens or the sand falls off the table. If there is an unsupported edge, sand will pile up and/or fall off at the right-hand edge and accumulate there (or on the floor directly beneath it).
Because transport is directed down the slope, most of the sand will be carried toward the lower (right) side and deposited where the transport energy drops — i.e. at the toe of the slope or wherever the surface flattens or the sand falls off the table. If there is an unsupported edge, sand will pile up and/or fall off at the right-hand edge and accumulate there (or on the floor directly beneath it).
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