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  4. A NCC parade is going at a uniform speed of 9 km / h under a mango tree on which a monkey is sitting at a height of 19.6 m. At any particular instant, the monkey drops a mango. A cadet will receive the mango whose distance from the tree at time of drop is: (Given .g=9.8 m / s 2)

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Q. A NCC parade is going at a uniform speed of $9\, km / h$ under a mango tree on which a monkey is sitting at a height of $19.6\, m$. At any particular instant, the monkey drops a mango. A cadet will receive the mango whose distance from the tree at time of drop is : (Given $\left.g=9.8\, m / s ^2\right)$

JEE MainJEE Main 2022Motion in a Plane

Solution:

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Time taken by mango $=\sqrt{\frac{2 n }{ g }} $
$ =\sqrt{\frac{2 \times 19.6}{9.8}}=2 $ second
Distance $= vt $
$ =9 \times \frac{5}{18} \times 2=5\, m $