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A helicopter is flying horizontally with a speed ' v '

Question:

A helicopter is flying horizontally with a speed ' $v$ ' at an altitude 'h' has to drop a food packet for a man on the ground. What is the distance of helicopter from the man when the food packet is dropped?

  1. $\sqrt{\frac{2 g h v^{2}+1}{h^{2}}}$

  2. $\sqrt{2 \mathrm{ghv}^{2}+\mathrm{h}^{2}}$

  3. $\sqrt{\frac{2 v^{2} h}{g}+h^{2}}$

  4. $\sqrt{\frac{2 g h}{v^{2}}}+h^{2}$

Correct Option: , 3

Solution:

$R=\sqrt{\frac{2 h}{g}} \cdot v$

$\mathrm{D}=\sqrt{\mathrm{R}^{2}+\mathrm{h}^{2}}$

$=\sqrt{\left(\sqrt{\frac{2 h}{g}} \cdot v\right)^{2}+h^{2}}$

$D=\sqrt{\frac{2 h v^{2}}{g}+h^{2}}$

Option (3) is correct

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Comments

rishab sawlani - June 21, 2022, 1:53 p.m.


worst answer ever

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