Answer to Question #41761 in Physics for Quamrul Isam

Question

A worker in an office 1350 m from Big Ben sets his watch to 1o clock when he hears the clock chime through an open window.An hour later,at 2 o clock, he checks his watch using the chimes of Big Ben heard from the radio and finds that his watch is 4 seconds slow.The watch is working correctly.Explain why he had set his watch 4 seconds slow at 1 o clock.