JEE Main 2018PhysicsRotational MotionMediumMCQ

JEE Main 2018 — Rotational Motion Question with Solution

JEE Main 2018 (15 Apr)

Question

A force of 40 N acts on a point B at the end of an L-shaped object as shown in the figure. The angle θ that will produce the maximum moment of the force about point A is given by:

Choose an option

Show full solutionCorrect option: C
Correct answer
Ctan⁡θ=12

Step-by-step explanation


Moment of force will be maximum when the line of action of force is perpendicular to line AB, tan⁡θ=24=12.

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About this question

This is a previous-year question from JEE Main 2018, covering the Rotational 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.