MCQ
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 is the $x-y$ plane with centre at $O$ and constant angular speed $\omega$. If the angular momentum of the system, calculated about $O$ and $P$ are denoted by $\vec{L}_O$ and $\vec{L}_P$ respectively, then
- A$\overrightarrow{ L }_{ O }$ and $\overrightarrow{ L }_{ P }$ do not vary with time.
- B$\vec{L}_0$ varies with time while $\vec{L}_P$ remains constant.
- ✓$\vec{L}_O$ remains constant while $\vec{L}_P$ varies with time.
- D$\vec{L}_0$ and $\vec{L}_P$ both vary with time.
