- #1

waley

## Homework Statement

I know that for a dispersive wave packet, the group velocity equals the phase velocity, which is given by v=w/k. But how do I calculate the group velocity of a non-dispersive wave packet? I'm supposed to be giving an example with any functional form.

## Homework Equations

group velocity is defined by (partial derivative of w(k))/(partial derivative of k)

## The Attempt at a Solution

Since w is not dependent on k, the partial derivative should equal to zero? But I'm not sure how to go from there.