JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumApplication

JEE Main 27 July 2022, Shift 2, Physics Q35

Question 35 of 90 in this shift, Physics question 5 of 30, Section A.

The velocity of the bullet becomes one third after it penetrates 4 cm in a wooden block. Assuming that bullet is facing a constant resistance during its motion in the block. The bullet stops completely after travelling at

(4+x)

cm inside the block. The value of

x

is :

(1)2.0
(2)1.0
(3)0.5Official answer
(4)1.5

Official answer

Option 3

NTA final key.

Chapter: Work, Energy and Power
Topic: Work and Kinetic Energy
Idea tested: Work-Energy Theorem

Same idea in other shifts

Asked 10× in all

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25 Jul 2022, Shift 1 · Q34A body of mass $0.5$ kg travels on straight line path with velocity $v=(3x^2+4)$ m/s. The net workdone by the force during its…EasySingle correct
29 Jun 2022, Shift 1 · Q38A particle of mass 500 gm is moving in a straight line with velocity $v = bx^{5/2}$ . The work done by the net force during its…MediumSingle correct
3 Sep 2020, Shift 1 · Q21A cricket ball of mass 0.15 kg is thrown vertically up by a bowling machine so that it rises to a maximum height of 20 m after leaving 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 108 of the 174 JEE Main shifts held from 2017 to 2026.