MCQ
A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of $0.5 m / s$. What is the height of the plane of circle from vertex of the funnel ?
- A$0.25 cm$
- B$2 cm$
- C$4 cm$
- ✓$2.5 cm$
✓
Answer
Correct option: D.
$2.5 cm$
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