English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

A bird comes along and takes the end of the string in its beak and starts flying in continuous outward circles around and around the pole until all of the string is unwound. Assume that the string is always attached to the centre of the pole and do not make allowances for the big bunch of string that would actually be there. How far did the bird fly?

2007-01-02 05:17:50 · 4 answers · asked by David C 2 in Science & Mathematics Mathematics

I had some questions on the thickness of the pole. I stated that one is to assume that the string is coming from the centre of the pole at all times and to disregard the mass of string wrapped around the top of the pole. The string is one mile long. A bird takes the end in it's beak and flies in circles around and around the pole until the string is completely unwound. How far would the bird fly?

2007-01-02 07:45:19 · update #1

Remember the bird is flying in ever increasing circles and not a regular circle but a circle that keeps increasing in size as the bird flies.

2007-01-02 07:47:14 · update #2

This question has no relation to the diameter of the pole. One is to assume that the string is coming directly of the top centre of the pole during the entire flight of the bird even though in practise this would not be possible but for this question it is to be assumed that the centre of the pole used.

2007-01-02 07:49:34 · update #3

4 answers

**See, days without an answer. So what was the final results?**

Without knowing the diameter of the pole, it is not possible to figure out.

Divide the diameter of the pole into 1 mile. The bird has to fly around the pole that many times. Each time they will fly one diameter further than the last time.

The last flight will be the circumference of the 1 mile radius circle.

Sorry, without a diameter, the problem makes no sense. You cannot define a spiral without having an additional measure. Given your assumptions, the bird could fly straight out and fly exactly one mile. Or it could make one loop, or three hundred loops. Your problem does not define another parameter, so there is no way of answering this.

2007-01-02 05:29:03 · answer #1 · answered by Aggie80 5 · 0 0

the bird fly outward,thereby increasing in a circular motion.
the bird can be assume to be going round the pole in 360 degree since the measurement of the pole is not known.
each time the bird flys,it increases by 1 mile,this can be determine if that of the pole is given.
did you see how many times the bird actually fly round the pole?.

2007-01-10 11:17:57 · answer #2 · answered by bright 247 2 · 0 0

If the bird unwound a mile of string then it would have to fly a mile, right?

2007-01-02 13:47:35 · answer #3 · answered by modulo_function 7 · 0 0

Bad question, how thick is the pole?

2007-01-02 13:27:23 · answer #4 · answered by ozywadle 3 · 1 0

fedest.com, questions and answers