Direction: Q. 21 to 25 |
Nazima is fly fishing in a stream. The tip of her fishing rod is \[\text{1}.\text{8 m}\] above the surface of the water and the fly at the end of the string rests on the water \[3.6\text{ m}\]away and \[2.4\text{ m}\] from a point directly under the tip of the rod. Assuming that her string (from the tip of her rod to the fly) is taut, answer the following questions given below: |
A) \[1\,m\]
B) \[1.5\,m\]
C) \[2.5\,m\]
D) \[3\,m\]
Correct Answer: D
Solution :
Length of the string that she has out \[=\sqrt{{{(1.8)}^{2}}+{{(2.4)}^{2}}}\] |
(Using Pythagoras theorem) |
\[=\sqrt{3.24+5.76}=3m\] |
\[\therefore \] She has 3 m string out. |
So, option [d] is correct. |
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