1. The problem statement, all variables and given/known data 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)> 2. Relevant equations 3. 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? thanks!