JEE Main 2024PhysicsMotion In One DimensionEasyMCQ

JEE Main 2024 — Motion In One Dimension Question with Solution

JEE Main 2024 (27 Jan Shift 1)

Question

Position of an ant ( S in metres) moving in Y-Z plane is given by S=2t2j^+5k^ (where t is in second). The magnitude and direction of velocity of the ant at t=1 s will be :

Choose an option

Show full solutionCorrect option: D
Correct answer
D4 m s-1 in y-direction

Step-by-step explanation

The velocity of the ant can be found as follows:

v→=dS→dt=ddt2t2j^+5k^=4tj^   ...1

At t=1 s, from equation (1), it follows that

v→=4j^

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About this question

This is a previous-year question from JEE Main 2024, 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.