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☑☑Answer With Figure And Explanation ☑☑​

Answer 1

Answer:

2.79 m

Step-by-step explanation:

From figure,

AD = 1.8 m, BD = 2.4 m and CD = 1.2 m

Retracting speed of string = 5 cm per second

In triangle ABD; length of string, i.e. AB can be calculated as follows:

AB² = AD² + BD²

      = (1.8)² + (2.4)²

AD = 3 m

Thus, length of string is 3 m.

Let us assume that the string reaches at point M after 12 seconds

Length of retracted string in 12 seconds = 5 * 12 = 60 cm.

Remaining length of string = 3 - 0.6 = 2.4 m [∵ 60 cm = 0.6 m]

In triangle AMD,

We can find MD by using Pythagoras Theorem.

MD² = AM² - AD²

       = (2.4)² - (1.8)²

      = 2.52 m

MD = 1.587

Now,

Horizontal distance between the girl and the fly  :

= 1.2 + 1.587

= 2.79 m

Therefore,

Horizontal distance = 2.79 m

Hope it helps!

Answer 2

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