A boat is at anchor. Over the side hangs a rope ladder
with rungs a foot apart. The tide rises at a rate of 10 inches per hour.
At the end of six hours, how much of the rope ladder will remain
above water, assuming that 10 feet were above the water when the tide
began to rise?
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4 comments:
5 foot?
i gotta jump in here... its still 10 feet, the boat rises with the tide.
I tend to agree, but the tether length of the anchor is a stationary thing isn't it?
Answer
Since the boat is afloat, the water level in relation to the ship stays the same. Therefore, 10 feet are above water,just as the beginning!
Tricky one at that!!!
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