Questions
A conical pendulum consists of a simple pendulum moving in a horizontal circle as shown in the figure. C is the pivot, O is the center of the circle in which the pendulum bob moves and is the constant angular velocity of the bob . If is the angular momentum about point C, then
detailed solution
Correct option is C
Method-1:The distance of L→ is perpendicular to the line joining the bob at point C. Since this line keeps changing its orientation in space, direction of L→ keeps changing, however, as ω is constant, magnitude of L→ remains constant.Method-2: The torque about point is perpendicular to the angular momentum vector about point C. Hence it can only change the direction of L→ and not its magnitude.Similar Questions
The angular momentum of the disc which spins with and its CM moves with a velocity about O will be
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