MHT CET 2026 Physics question
A particle describes a horizontal circle of radius 'r' in conical funnel with smooth inner surface with a speed of 0.5m/s. The height of the plane of the circle from the vertex of the funnel is (acceleration due to gravity, g = 10m/s)
Answer: (B)
Solution
Let the wall of the funnel make half-angle with the vertical axis. The forces are gravity and the normal reaction perpendicular to the wall. Vertical balance: . Horizontal (centripetal): . Dividing, . From the geometry of
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