hi,
i hate to do this for i become too much dependent relying on your answers., however, please help me with these few questions. it really makes my brain twist..
1.) a child is flying a kite at a height of 40 ft, that is moving horizontally at a rate of 3ft/sec. If the string is taut, at what rate is the string being paid out when the length of the string released is 50 ft?
2.) sand is being dropped at the rate of 10m^3/min into a conical pile. If the height of the pile is always twice the base radius, at what rate is the height increasing when the pile is 8m high?
PS
please show your solutions. i think, these 2 problems are examples of the application of derivative .
in question # 2, i get 0.597m/min, am i right??
aarghh...i certainly need an answer to this..
thank you so much to those who would help..
:-)good day!
2007-08-08
22:51:51
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4 answers
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asked by
simply
3
in
Mathematics