JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 29 June 2022, Shift 1, Physics Q31

Question 31 of 90 in this shift, Physics question 1 of 30, Section A.

Two balls A and B are placed at the top of 180 m tall tower. Ball A is released from the top at

t = 0

s. Ball B is thrown vertically down with an initial velocity '

u

' at

t = 2

s. After a certain time, both balls meet 100 m above the ground. Find the value of '

u

' in

\mathrm{ms^{-1}}

. [use

g = 10\ \mathrm{ms^{-2}}

] :

(1)10
(2)15
(3)20
(4)30Official answer

Official answer

Option 4

NTA final key (2022 Session 1).

Chapter: Motion in a Straight Line
Topic: Kinematics in 1D
Idea tested: Meeting Point Condition

Same topic in other shifts

All Kinematics in 1D questions

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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.