(5-3)  Cormorant’s momentum (using, again, the classical definition as – whatever he likes to boast – his velocity does not get close to the speed of light) is:

           p  =  mv  =  2.50 x 2.0  =  5.0 kgms-1

Therefore, according to de Broglie, Cormorant’s wavelength  λ = h/p   =   6.626 x 10-34 / 5.0

     =  1.3 x 10-34 m

  (very short)