JEE Main 2021 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 3 August 2021, Shift 2, Physics Q24

Question 24 of 90 in this shift, Physics question 24 of 30, Section B.

A train left the station at uniform acceleration of 2 m/s

^2

. A man behind the train at a distance of 5 m is running with a constant speed of 6 m/s to catch the train. The time to catch the train will be

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Official answer

NTA final key.

Chapter: Motion in a Straight Line
Topic: Kinematics in 1D
Idea tested: 1D Overtaking and Meeting Time

Same topic in other shifts

All Kinematics in 1D questions

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5 Apr 2026, Shift 1 · Q47From 18 m height above the ground a ball is dropped from rest. The height above the ground at which the magnitude of velocity equal to the…MediumNumerical value
5 Apr 2026, Shift 2 · Q29The velocity ( $v$ ) versus time ( $t$ ) plot of a particle is shown in the figure, for a time interval of 40 s. The total distance travelled…EasyDiagram basedHas a figure
8 Apr 2026, Shift 2 · Q29A gas balloon is going up with a constant velocity of 10 m/s. When this balloon reached a height of 75 m, a stone is dropped from it and…EasySingle correct
8 Apr 2026, Shift 2 · Q50Two masses of 3.4 kg and 2.5 kg are accelerated from an initial speed of 5 m/s and 12 m/s, respectively. The distances traversed by the…MediumNumerical value
2 Apr 2025, Shift 1 · Q49A person travelling on a straight line moves with a uniform velocity $v_1$ for a distance $x$ and with a uniform velocity $v_2$ for the…EasyNumerical value

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.