1. Walking and rowing A
boat on the ocean is 4 mi from the nearest point on a straight shoreline:that
point is 6 mi from a restaurant on the shore (see figure). A woman plans to row
the boat straight to a point on the shore and then walk along the shore to the
a. If she walks at
and rows at 2 mihr, at which point on the shore
should she land to minimize the total travel time?
b. If she walks at
what is the minimum speed at which she must row so that the quickest way to the
restaurant is to row directly (with no walking)?
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