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Speaker Beats

  • Thread starter DDS
  • Start date

DDS

171
0
A speaker at the front of a room and an identical speaker at the rear of the room are being driven by the same oscillator at 464 Hz. A student walks at a uniform rate of 1.67 m/s along the length of the room. How many beats does the student hear per second?

I have gotten this far its just i dont know where to go from here..simply i dont no how to find v, is it jsut speed of sound ??

F=464 Hz
u=1.67 m/s

Flow=f(1-u/v)
Fhi= f(1+u/v)

Fbeat=/ Fhi - Flow / = (2*f*u)/v

Whats v??
 

DDS

171
0
does anyone know how to determine the value of v
 

DDS

171
0
nvm i got it
 

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