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Friday, 16 October

JEE Main 2025 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 7 April 2025, Shift 2, Physics Q29

Question 29 of 75 in this shift, Physics question 4 of 25, Section A.

A 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 ground at a point O, 20 s after it is dropped. Displacement of 'O' from the position of helicopter where the object was released is : (use acceleration due to gravity g=10g=10 m/s2^2 and neglect air resistance)
  1. (1)252\sqrt{5} km
  2. (2)222\sqrt{2} kmOfficial answer
  3. (3)4 km
  4. (4)7.2 km

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 2× in all
  1. 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 42 of the 174 JEE Main shifts held from 2017 to 2026.