Ch 10 Day 4 Notes.notebook
December 11, 2013
AP Calculus AB II: Related Rates (day 2)
Notes Handout:
4) A child is flying a kite at a height of 40 ft, that is moving horizontally at a rate of 3 ft/sec. If the string is taut, at what rate is the string being let out when the length of the string released is 50 ft?
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Ch 10 Day 4 Notes.notebook
December 11, 2013
6) Two cars, one going due east at the rate of 90 km/hr and the other going due south at the rate of 60 km/hr, are traveling toward the intersection of two roads. At what rate are the cars approaching each other at the instant when the first car is .2 km and the second car is .15 km from the intersection?
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Ch 10 Day 4 Notes.notebook
December 11, 2013
5) A 13 ft. ladder is leaning against a house when its base starts to slide away. By the time the base is 12 ft. from the house, the base is moving at the rate of 5 ft/sec. How fast is the top of the ladder sliding down the wall then? At what rate is the area of the triangle formed by the ladder, wall, and ground changing then? At what rate is the angle θ between the ladder and the ground changing then?
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