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 0 and constant angular speed $ω$ . If the angular momentum of the system, calculated about o and p are denoted by $L_{o} a n d L_{p}$ respectively, then

$L_{o} a n d L_{p}$ do not vary with time.

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$L_{o}$ varies with time while $L_{p}$ remains constant.

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$L_{o}$ remains constant while $L_{p}$ varies with time.

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$L_{o} a n d L_{p}$ both vary with time.

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Solution

The correct option is C
$L_{o}$ remains constant while $L_{p}$ varies with time.

$L_{o}$ remains constant while $L_{p}$ varies with time because the direction of angular momentum keeps on changing.

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Q. 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

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are denoted by

{\to L}_{O}

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{\to L}_{P}

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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 $ω$ . If the angular momentum of the system, calculated about O and P are denoted by $_{O}$ and $_{P}$ respectively, then

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The correct option is C Lo remains constant while Lp varies with time. Lo remains constant while Lp varies with time because the direction of angular momentum keeps on changing.

The correct option is C
$L_{o}$ remains constant while $L_{p}$ varies with time.

$L_{o}$ remains constant while $L_{p}$ varies with time because the direction of angular momentum keeps on changing.