A particle of mass m and charge q moves at high speed along the x axis. It is initially near
x = $∞$, and it ends up near x = -$∞$ . A second charge Q is fixed at the point x = 0,
y = - d. As the moving charge passes the stationary charge, its x component of velocity
does not change appreciably, but it acquires a small velocity in the y direction.
Determine the angle through which the moving charge is deflected from the direction
of its initial velocity.