A car drives at a speed of 25m/s along a road parallel to a railroad track. A train traveling at 17m/s sounds a horn that vibrates at 300 Hz.

A car drives at a speed of 25m/s along a road parallel to a railroad track. A train traveling at 17m/s sounds a horn that vibrates at 300 Hz. Part A If the train and car are moving toward each other, what frequency of sound is heard by a person in the car?

Part B If the train and car are moving away from each other, what frequency of sound is heard in the car?