question_answer

In a car race sound signals emitted by the two cars are detected by the detector on the straight track at the end point of the race. Frequency observed are 330 Hz and 360 Hz and the original frequency is 300 Hz of both cars. Race ends with the separation of 100 m between the cars. Assume both cars move with constant velocity and velocity of sound is 330\[\text{m}\,{{\text{s}}^{-1}}\]. The time taken by winning car is ____ s.

Answer:

4.0