JEE Main 2021 — Laws of Motion Question with Solution
JEE Main 2021 (20 Jul Shift 2)
Question
A body of mass is launched up on a rough inclined plane making an angle of with the horizontal. The coefficient of friction between the body and plane is if the time of ascent is half of the time of descent. The value of is
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Show full solutionCorrect answer: 3
Correct answer
3
Step-by-step explanation
Using the above values of and and putting in
equation , we will get,
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This is a previous-year question from JEE Main 2021, 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.