Two cars,one in front of the other,are traveling down the highway at 44 m/s.The car behind sounds its horn,which has a frequency of 530 Hz.What is the frequency heard by the driver of the lead car? (v_sound = 340 m/s)

Question

Quizplus · Accepted Answer

Since both cars are moving at the same speed and in the same direction, there is no relative motion between them. Therefore, the frequency heard by the driver of the lead car is the same as the frequency of the horn, which is 530 Hz.

Two Cars,one in Front of the Other,are Traveling Down the Highway