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## Homework Statement

The security alarm on a parked car goes off and produces a frequency of 958 Hz. The speed of sound is 343 m/s. As you drive toward this parked car, pass it, and drive away, you observe the frequency to change by 95 Hz. At what speed are you driving?

## Homework Equations

Doppler effect formula:

F=Fo [(Vsound- Vobserver)/(Vsound-Vsource)]

## The Attempt at a Solution

This should be an easy problem but I just dont know how to setup the equations. I need to find the velocity, but I dont know how to solve for V.

863=958 [(343-V)/(343-0)]

How do I solve for Velocity? I dont know how to rearrange the formula so that V is isolated on one side of the equation.... Please help?