![A train is travelling away from you at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound - Brainly.in A train is travelling away from you at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound - Brainly.in](https://hi-static.z-dn.net/files/d7c/bf77c4acbe34ac710b46d46a006b05d5.jpg)
A train is travelling away from you at 120 km/h. The train blows its 400-Hz whistle. Take the speed of sound - Brainly.in
![A train approachign a railway crossing at a speed of 120 kmh^-1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of A train approachign a railway crossing at a speed of 120 kmh^-1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of](https://d10lpgp6xz60nq.cloudfront.net/physics_images/HCV_VOL1_C16_S01_029_S01.png)
A train approachign a railway crossing at a speed of 120 kmh^-1 sounds a short whistle at frequency 640 Hz when it is 300 m away from the crossing. The speed of
![A police jeep is cheaping with velocity of 45 km/h, a theif in another jeep moving with velocity 153 km/h. Police fires a bullet with muzzle of 180 m/s. The velocity it A police jeep is cheaping with velocity of 45 km/h, a theif in another jeep moving with velocity 153 km/h. Police fires a bullet with muzzle of 180 m/s. The velocity it](https://dwes9vv9u0550.cloudfront.net/images/4047096/6498eff8-41d3-41a6-ad87-bcb1500f7d8d.jpg)