JEE Main 2021 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 26 August 2021, Shift 1, Physics Q29

Question 29 of 90 in this shift, Physics question 29 of 30, Section B.

Two spherical balls having equal masses with radius of 5 cm each are thrown upwards along the same vertical direction at an interval of 3 s with the same initial velocity of 35 m/s, then these balls collide at a height of __________ m. (take

g=10\ \mathrm{m/s^2}

)

Official answer

NTA final key.

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

Same idea in other shifts

Asked 3× in all

26 Jun 2022, Shift 2 · Q51A ball is projected vertically upward with an initial velocity of 50 $ms^{-1}$ at t = 0s. At t = 2s, another ball is projected vertically…MediumNumerical value
29 Jun 2022, Shift 1 · Q31Two 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…MediumSingle 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.