1. An electron moving along the x-axis has a position given by x=16*te^-t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
2. Homework Equations
uv=u'v+uv'
3. The Attempt at a Solution
x'=e^-t - t*e^-t
e^-t - t*e^-t = 0
-te^-t = -e^-t...