JEE Main 2023PhysicsLaws of MotionMediumMCQ

JEE Main 2023 — Laws of Motion Question with Solution

JEE Main 2023 (29 Jan Shift 1)

Question

A car is moving on a horizontal curved road with radius 50 m. The approximate maximum speed of car will be, if friction between tyres and road is 0.34. [Take g=10 m s-2]

Choose an option

Show full solutionCorrect option: C
Correct answer
C13 m s-1

Step-by-step explanation

For a car moving with uniform speed along a circular track, the centripetal acceleration is provided by the frictional force acting radially inwards. Therefore, applying Newton's second law along radial direction,

μmg=mv2r

⇒v=μrg

   =0.34×50×10

    ≈13 m s-1

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About this question

This is a previous-year question from JEE Main 2023, covering the Laws of Motion 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.