A particle of mass m moves freely in space in the x direction.
(a) Derive equations of motion for the following operator expectations:
<x(t)>, <p(t)> , <X^2(t)>,<P^2(t)>
The Attempt at a Solution
baah I dont even know....
I guess we'll start from the equation of motion d<x(t)>/dt = 1/ih <[X(t),H]> + <dx(t)/dt>
but how do I find the average of dx(t)/dt?