JEE Main 2022 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 27 June 2022, Shift 1, Physics Q60

Question 60 of 90 in this shift, Physics question 30 of 30, Section B.

A pendulum of length 2 m consists of a wooden bob of mass 50 g. A bullet of mass 75 g is fired towards the stationary bob with a speed

v

. The bullet emerges out of the bob with a speed

\frac{v}{3}

and the bob just completes the vertical circle. The value of

v

is __________

\mathrm{ms^{-1}}

. (if g=10 m/s

^2

Official answer

NTA final key.

Chapter: Work, Energy and Power
Topic: Collisions
Idea tested: Ballistic Pendulum

Same idea in other shifts

Asked 3× in all

1 Feb 2024, Shift 1 · Q35A simple pendulum of length 1 m has a wooden bob of mass 1 kg. It is struck by a bullet of mass $10^{-2}$ kg moving with a speed of…MediumSingle correct
16 Mar 2021, Shift 2 · Q14A large block of wood of mass M = 5.99 kg is hanging from two long massless cords. A bullet of mass m = 10 g is fired into the block and…MediumDiagram basedHas a figure

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.