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Question

A bead of mass \( m \) slides on a hemispherical surface with a velocity \( v \) at an angular position \( \theta \). If the coefficient of friction between the bead and hemispherical surface is \( \mu \), Find the magnitude of Angular momentum of the bead about \( O \) in the position shown

Answer 1

\(A.M = m(\vec V \times \vec R)\)

\(= mVR \sin 90^\circ\)

\(= mVR\)