JEE Main 2026 — Work Power Energy Question with Solution
JEE Main 2026 (24 January Shift 2)
Question
In case of vertical circular motion of a particle by a thread of length if the tension in the thread is zero at an angle shown in figure, the velocity at the bottom point of the circular path is ( gravitational acceleration)
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
At the point where tension and angle from vertical is (i.e., from horizontal):
Since :
Using mechanical energy conservation from bottom (A) to the point where :
Since :
Using mechanical energy conservation from bottom (A) to the point where :
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This is a previous-year question from JEE Main 2026, covering the Work Power Energy 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.