Question

A car is at motion.It horns an hears the echo of the sound after 6 sec.find the speed of the car.

Answer 1

speed of sound=330m/s,there is unequal distance covered by the sound bcs the car was moving,then we should assume

Answer 2

Cont.d: -there is different time,let us use 4&2,4s for sound to go & 2s to come back,using : V=2D/T,find d using 4&2s.

Answer 3

Cont.d: in 4s we get 660m,& 2s,330m,therefore the speed of the car: D1-D2/T1-T2,where d1=large distance,t1=samE

Answer 4

You can try it with 5 and 1 second,you would get the same velocity