-Suppose that the body A is located 10 m from a source P which fires or radiates to the body. Suppose that (regarding P) when the A (moving close to P) has traveled 2 m, the shot has traveled 6 m . Regarding A the P has moved and traveled 2 m while the shot from P has traveled a resultant 2 + 6 m.--However (regarding P) if A moves (close to P) faster than before, it traveles the distance of 2 m faster than before and in less time , so in that time the shot does not travel 6 m but 5 m. But regarding A the P moves (faster than before) so P traveles...