When a mass moves in a plane about a fixed po | vedclass

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Question

(D) The angular momentum $\vec{L}$ of a particle is defined by the cross product of its position vector $\vec{r}$ and its linear momentum $\vec{p}$,gi

Vedclass · Accepted Answer

The axis of rotation

Vedclass · Answer

(D) The angular momentum $\vec{L}$ of a particle is defined by the cross product of its position vector $\vec{r}$ and its linear momentum $\vec{p}$,given by $\vec{L} = \vec{r} 	imes \vec{p}$.According to the right-hand rule for the cross product,the vector $\vec{L}$ is perpendicular to both $\vec{r}$ and $\vec{p}$.Since both $\vec{r}$ and $\vec{p}$ lie in the plane of rotation,their cross product $\vec{L}$ must be perpendicular to the plane of rotation.The line perpendicular to the plane of rotation passing through the fixed point is the axis of rotation.Therefore,the direction of the angular momentum is along the axis of rotation.

When a mass moves in a plane about a fixed point,the direction of its angular momentum is along which of the following?

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