一道AP微积分题目A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat.If the rope is pulled in at a rate of 1.1 m/s,how fast is the boat appr

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一道AP微积分题目A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat.If the rope is pulled in at a rate of 1.1 m/s,how fast is the boat appr
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一道AP微积分题目A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat.If the rope is pulled in at a rate of 1.1 m/s,how fast is the boat appr
一道AP微积分题目
A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat.
If the rope is pulled in at a rate of 1.1 m/s,how fast is the boat approaching the dock when it is 8 m from the dock?
只给答案也可以.能写出详细过程就更好了.

一道AP微积分题目A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat.If the rope is pulled in at a rate of 1.1 m/s,how fast is the boat appr
设船到岸边的距离为x,绳子长度为L
根据勾股定理,x^2+1=L^2
等号两边同时关于t求导
得2x*dx/dt=2L*dL/dt
已知dL/dt=1.1,x=8
可以求出L=sqrt(65)
所以16dx/dt=2sqrt(65)*1.1
解得dx/dt=1.109
错了不要抽我.
And do realize that if you asking this online is against school rules I will not be responsible.

一道AP微积分题目A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat.If the rope is pulled in at a rate of 1.1 m/s,how fast is the boat appr ap 微积分的一道题 微积分的一道题目~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 求一道微积分题目! 一道微积分的题目 一道微积分题目 一道微积分题目 一道AP微积分题目If f is differentiable and difference quotients overestimate the slope of f at x=a for all h>0, which must be true?Answer: f''(a)>0 为什么= =我知道了……但是回答仍然给分！ 问一道ap微积分的题目,The manager of a large apartment complex knows from experience that 90 units will be occupied if the rent is 372 dollars per month.A market survey suggests that,on the average,one additional unit will remain vacant for e 一道微积分的题目 求解 如图.一道微积分题目 求一道微积分证明题目 问一道微积分的题目 ap微积分 ap微积分 ap 微积分 AP微积分 life is like a boat