Question: In a circus stuntman rides a motorbike in a circular track of radius 𝑅 in the vertical plane. The minimum speed at highest point of track will be
(A) \sqrt{2gR}
(B) 2𝑔R
(C) \sqrt{3gR}
(D) \sqrt{gR}
Answer: option (D)
Solution:
In a circus stuntman rides a motorbike in a circular track of radius 𝑅 in the vertical plane. The minimum speed at highest point of track will be
with
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