- #1

Mark Zhu

- 32

- 3

## Homework Statement

A point particle travels in a straight line at constant

speed, and the closest distance it comes to the origin of coordinates

is a distance l. With respect to this origin, does the particle

have nonzero angular momentum? As the particle moves along its

straight-line path, does its angular momentum with respect to the

origin change?

## Homework Equations

L = r x p

## The Attempt at a Solution

Since there are no external torques applied to this particle system, I assume the angular momentum doesn't change. However, since the position vector of the particle changes over time and the linear momentum vector remains constant, wouldn't the angular momentum vector also change looking at the L = r x p

equation?