A police car is traveling at a speed vc to the left and a truck is traveling at a speed vt to the right. A wind is blowing in the same direction as...

A police car is traveling at a speed vc to theleft and a truck is traveling at a speed vt to theright. A wind is blowing in the same directionas that of the truck with a speed vw to theright. The frequency of the siren on the policecar is fc.Policevc vtTruckvwwindWhat is the frequency ft heard by an observer in the moving truck? The speed ofsound in air is va.