JEE Main 2021PhysicsMotion In Two DimensionsMediumMCQ

JEE Main 2021Motion In Two Dimensions Question with Solution

JEE Main 2021 (17 Mar Shift 1)

Question

A modern grand-prix racing car of mass m is travelling on a flat track in a circular arc of radius R with a speed v. If the coefficient of static friction between the tyres and the track is μs, then the magnitude of negative lift FL acting downwards on the car is:

Choose an option

Show full solutionCorrect option: B
Correct answer
Bmv2μsR-g

Step-by-step explanation

μsN=mv2R

N=mv2μsR=mg+FL

FL=mv2μsR-mg

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About this question

This is a previous-year question from JEE Main 2021, 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.