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D.) Suppose that once you have reversed the fan, you keep the fan reversed and on. Will you arrive safely back at Base Camp?
Yes or no?
You will certainly reach Base Camp, but it is perhaps not reasonable to say you have "arrived safely".
What does arrive mean?
You might worry, since by the time you reach Base Camp you will be traveling fast enough that it would take you a mile to stop if you had to rely only on the reverse thrust of the fan. Unless you can find some more efficient (but safe) way of stopping the boat, you will have to repeat the tedious process of turning the boat around again if you want to get your gloves.
Part 2
Suppose you are making your daily rounds. This involves:
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