#CRICKET - The Easiest Way to Improve Bat Speed NATURALLY ⬇️ #batspeed #shorts #youtubeshorts

A train A crosses a station with a speed of 40 m/s and whitles a short pulse of natural frequency n_0=596Hz another train B is approaching towards the same station with the same speed along a parallel track, Two track are d=99m apart. When train A whistles. train B is 152 m away from the station as shown in Fig. If velocity of sound in air is v=300(m)/(s) . calculate frequency of the pulse heard by driver of train B.