JEE Main 2023PhysicsMotion In One DimensionEasyMCQ

JEE Main 2023 — Motion In One Dimension Question with Solution

JEE Main 2023 (30 Jan Shift 2)

Question

A vehicle travels 4 km with speed of 3 km h-1 and another 4 km with speed of 5 km h-1, then its average speed is :

Choose an option

Show full solutionCorrect option: D
Correct answer
D3.75 km h-1

Step-by-step explanation

Average speed in this case is given by, 2vav=1v1+1v2

⇒2vav=13+15

⇒2vav=815

⇒vav=154=3.75 km h-1

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About this question

This is a previous-year question from JEE Main 2023, 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.