Solved: A car is parked 20.0 m directly south of a
Chapter 16, Problem 16.134(choose chapter or problem)
A car is parked 20.0 m directly south of a railroad crossing. A train is approaching the crossing from the west, headed directly east at a speed of 55.0 m/s. The train sounds a short blast of its 289-Hz horn when it reaches a point 20.0 m west of the crossing. What frequency does the cars driver hear when the horn blast reaches the car? The speed of sound in air is 343 m/s. (Hint: Assume that only the component of the trains velocity that is directed toward the car affects the frequency heard by the driver.)
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