JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 24 June 2022, Shift 1, Physics Q39

Question 39 of 90 in this shift, Physics question 9 of 30, Section A.

A particle experiences a variable force

\vec{F}=(4x\hat{i}+3y^2\hat{j})

in a horizontal

x

y

plane. Assume distance in meters and force is newton. If the particle moves from point

(1, 2)

to point

(2, 3)

in the

x

y

plane, then Kinetic Energy changes by :

(1)50.0 J
(2)12.5 J
(3)25.0 JOfficial answer
(4)0 J

Official answer

Option 3

NTA final key (2022 Session 1).

Chapter: Work, Energy and Power
Topic: Work and Kinetic Energy
Idea tested: Work via Line Integrals

Same topic in other shifts

All Work and Kinetic Energy 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.