Solved UPSC CDS/OTA Question
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Q · Circular MotionMedium · 45s
A coin placed on a rotating disc flies off tangentially if:
TopicCircular Motion
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
If friction is insufficient to provide the required centripetal force, the coin moves tangentially due to inertia.
Final Answer: Option C — Friction fails to provide the necessary centripetal force