Homework Help: calculus

Posted by Joshie on Wednesday, October 6, 2010 at 9:51pm.

a woman on a dock is using a rope to pull in a canoe. the rope is pulled at the rate of 2 ft/sec, 3ft above the point level with the connection of the rope to the canoe. How fast is the canoe approaching the dock when the length of the rope from her hands to the canoe is 10 ft?

calculus - Reiny, Wednesday, October 6, 2010 at 10:30pm
similar to your previous question.

make sketch of right-angled triangle
height = 3, base = x, hypotenuse = y

y^2 = x^2 + 9

follow the same steps I showed you in previous post
calculus - Joshie, Wednesday, October 6, 2010 at 10:48pm
Thanks Darling.

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