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

Question: 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

(D) 2.5 𝑐𝑚

Answer: option (D)

Solution:

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