Напруга на ділянці кола від чого залежить

One hare met at the river turtle and said,
- Let us flee to race ! Assign the award to the winner - the most mature fruit basket . We put the basket on the far hill. Who will come running the first one and eat the fruit .
Turtle thought and agreed.
They filled the basket fruit, put it on top of a hill , and themselves returned to the river.
- Run! - Said the hare , and roared with laughter. He knew that running a lot faster than a tortoise. And the turtle knew that she did not keep up with the hare . But she hurried as I could to the far hill.
A rabbit was rolling with laughter in the grass and could not catch my breath . Finally, when the hare came to, he saw that the turtle is already climbing up the far hill. Raced after her with all haste . Yes, but too late. When the hare reached the top of the hill , the turtle is juicy fruit is eaten .
Why did it happen ?
Turtle went to the goal without stopping. A rabbit lying in the grass and bragging . But the braggart and quick feet are not in store

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