JEE Main 2021 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 31 August 2021, Shift 1, Physics Q19

Question 19 of 90 in this shift, Physics question 19 of 30, Section A.

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) $\sqrt{\frac{2gh}{v^2}+h^2}$
(2) $\sqrt{\frac{2v^2h}{g}+h^2}$ Official answer
(3) $\sqrt{2ghv^2+h^2}$
(4) $\sqrt{\frac{2ghv^2+1}{h^2}}$

Official answer

Option 2

NTA final key.

Chapter: Motion in a Plane
Topic: Projectile Motion
Idea tested: Horizontal Projection from Height

Same idea in other shifts

Asked 4× in all

7 Apr 2025, Shift 2 · Q29A helicopter flying horizontally with a speed of 360 km/h at an altitude of 2 km, drops an object at an instant. The object hits the…EasySingle correct
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28 Jul 2022, Shift 1 · Q32A 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…EasySingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.