JEE Main 2023PhysicsMotion In Two DimensionsMediumMCQ

JEE Main 2023 — Motion In Two Dimensions Question with Solution

JEE Main 2023 (31 Jan Shift 2)

Question

A stone of mass 1kg is tied to end of a massless string of length 1 m. If the breaking tension of the string is 400 N, then maximum linear velocity, the stone can have without breaking the string, while rotating in horizontal plane, is:

Choose an option

Show full solutionCorrect option: A
Correct answer
A20 m s-1

Step-by-step explanation

In horizontal circle, tension towards the centre of the circular path at any moment will provide the required centripetal force.

Therefore,

Tmax=mv2r⇒400=1×v21⇒v=20 m s-1

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About this question

This is a previous-year question from JEE Main 2023, covering the Motion In Two Dimensions 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.