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

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

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?

Similar Questions

Identify the vector quantity among the following.

$A$ torque of $50 \ Nm$ acts on a body for $8 \ s$,which is initially at rest. The change in its angular momentum is:

$A$ particle of mass $m$ is moving along a straight line parallel to the $x$-axis with a constant velocity $v$ at a distance $b$ from the origin. Find the angular momentum about the origin in vector form.

$A$ particle with position vector $\overrightarrow{r}$ has a linear momentum $\overrightarrow{p}$. Which one of the following statements is true in respect of its angular momentum $\overrightarrow{L}$ about the origin?

The angular momentum of a system of particles changes if:

Vedclass Test Series

Exam Paper Generator

Online Exam Module