Physics - NLM Question with Solution | TestHub
PhysicsNLMFrictionMedium2 minQB
PhysicsMediumstatement
Statement I: A coin placed on a rotating long-play record flies off when the rotation speed becomes large enough.
Statement II: The friction available cannot supply the centripetal force needed at that speed, so the coin slides off tangentially.
Options:
Answer:
A
Solution:
The needed centripetal force grows with speed;
once it passes the limiting friction, the coin slips and leaves along the tangent.
Both statements are true.
Option A.
Stream:JEESubject:PhysicsTopic:NLMSubtopic:Friction
⏱ 2mℹ️ Source: QB
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