JEE Main 2021PhysicsMotion In One DimensionMediumNumerical

JEE Main 2021 — Motion In One Dimension Question with Solution

JEE Main 2021 (26 Feb Shift 1)

Question

A boy pushes a box of mass 2 kg with a force F→=20i^+10j^N on a frictionless surface. If the box was initially at rest, then _______ m is displacement along the x-axis after 10 s

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Show full solutionCorrect answer: 500
Correct answer
500

Step-by-step explanation

F→=20i^+10j^

a→=F→m=20i^+10j^2⇒10i^+5j^

∴ s→=12a→t2=1210i^+5j^×102

⇒5010i^+5j^m

∴ Displacement along x-axis

⇒50×10⇒500 m

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About this question

This is a previous-year question from JEE Main 2021, covering the Motion In One Dimension chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.