Question 83: Motion in 2D & Vectors

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?

Accepted Answer

$$R = \sqrt {{{2h} \over g}} .\,v$$
$$D = \sqrt {{R^2} + {h^2}} $$
$$ = \sqrt {{{\left( {\sqrt {{{2h} \over g}} .\,v} \right)}^2} + {h^2}} $$
$$D = \sqrt {{{2h{v^2}} \over g} + {h^2}} $$
Option (c) is correct.

Answer

$$\sqrt {{{2gh{v^2} + 1} \over {{h^2}}}} $$

Answer

$$\sqrt {2gh{v^2} + {h^2}} $$

Answer

$$\sqrt {{{2{v^2}h} \over g} + {h^2}} $$

Answer

$$\sqrt {{{2gh} \over {{v^2}}} + {h^2}} $$

Motion in 2D & Vectors

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?

Choose the correct answer: