Summary: Not sure what superposition of waves is? Don’t really know what or how superposition can be applied to waves? Well this short power point provides an example question and solution and also a little background info.
http://https://docs.google.com/presentation/d/1IKXzQrzJH6ETCcuKQO3xqpj3ft81muQOlUsvy5dmxuE/edit?usp=sharing