A nucleus is at rest in the laboratory frame of reference.Show that if it disintegrates into two smaller nuclei the products must move in opposite directions.

A nucleus is at rest in the laboratory frame of reference.Show that if

1.	A nucleus is at rest in the laboratory frame of reference.Show that if it disintegrates into two smaller nuclei the products must move in opposite directions.
Answer» Solution : By MOMENTUM conservation PRINCIPLE, TOTAL final momentum is zero.Two momentum vectors cannot sum to a NULL momentum unless they are equal and opposite.