Physics

Problem

A particle rests on the top of a hemisphere of radius R. The minimum linear horizontal velocity for the particle to leave the vertex without slipping will be (1)

v = \sqrt{2gR}

(2)

v = \sqrt{\frac{Rg}{2}}

(3)

v = \sqrt{gR}

(4)

v = \sqrt{\frac{2g}{R}}

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