JEE Main 2018 — Laws of Motion Question with Solution
JEE Main 2018 (15 Apr Shift 2 Online)
Question
A disc rotates about its axis of symmetry in a hoizontal plane at a steady rate of revolutions per second. A coin placed at a distance of from the axis of rotation remains at rest on the disc. The coefficient of friction between the coin and the disc is
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Using, Radius, Coefficient of friction, ?
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Laws of Motion chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2018, 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.