JEE Main 2020PhysicsMotion In Two DimensionsMediumMCQ

JEE Main 2020 — Motion In Two Dimensions Question with Solution

JEE Main 2020 (02 Sep Shift 1)

Question

A uniform cylinder of mass M and radius R is to be pulled over a step of height a a <R by applying a force F at its centre  'O' perpendicular to the plane through the axes of the cylinder on the edge of the step (see figure). The minimum value of F required is :

 

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Show full solutionCorrect option: A
Correct answer
AMg1-R-aR2

Step-by-step explanation

Mg1-R-aR2

FR>Mgcosθ R

F>Mgcosθ

F>MgR2-(R-a)2R. 

⇒Mg1-R-aR2

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About this question

This is a previous-year question from JEE Main 2020, 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.