A small mass m is attached to a massless string whose other end is fixed at P as shown in the figure. The mass is undergoing circular motion in the x-y plane with centre at O and constant angular speed w. If the angular momentum of the system, calculated about O and P are denoted by \left(\overset{\rightarrow}{L}\right)_{0} \textrm{ }\textrm{ } and \textrm{ }\textrm{ } \left(\overset{\rightarrow}{L}\right)

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A small mass m is attached to a massless string whose other end is fixed at P as shown in the figure. The mass is undergoing circular motion in the x-y plane with centre at O and constant angular speed w. If the angular momentum of the system, calculated about O and P are denoted by ${\vec{L}}_{0} and {\vec{L}}_{P}$ respectively, then

${\vec{L}}_{0} and {\vec{L}}_{P}$ both vary with time

${\vec{L}}_{0} and {\vec{L}}_{P}$ do not vary with time.

${\vec{L}}_{0}$ remains constant while ${\vec{L}}_{P}$ varies with time.

${\vec{L}}_{0}$ varies with time while ${\vec{L}}_{P}$ remains constant

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About point P, angular momentum changes in direction, but about O angular momentum does not change either in direction or in magnitude.

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