Vectors delta velocity calculations

by NMann
Tags: vectors, velocity
 Math Emeritus Sci Advisor Thanks PF Gold P: 39,682 If the distance from B to A is d, then the first wave, taking t1 to go from B to A, has speed d/t1. The second wave, taking t2 to go from B to A, has speed d/t2. The "$\Delta v$" is d/t1- d/t2= d(t2- t1)/t1t2. If you do not know the distance from B to A, then you cannot calculate $\Delta v$.