JEE Main 2021PhysicsMotion In Two DimensionsMediumMCQ

JEE Main 2021 — Motion In Two Dimensions Question with Solution

JEE Main 2021 (31 Aug Shift 1)

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 ?

Choose an option

Show full solutionCorrect option: D
Correct answer
D2v2 h g+h2

Step-by-step explanation

The aeroplane imparts v velocity to the food packet horizontally when dropping. Horizontal range of food packet =v×2hg
Also, Horizontal distance, travelled by aeroplane =v×2hg thus, vertical distance between aeroplane and person =h
distance =2v2 h g+h2

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About this question

This is a previous-year question from JEE Main 2021, covering the Motion In Two Dimensions chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.