Question

A police siren of frequency fsiren is attached to a vibrating platform. The platform and siren oscillate up and down in simple harmonic motion with amplitude Ap and frequency fp.

A)Find the maximum sound frequency that you would hear at a position directly above the siren.

Use v for the speed of sound. Express your answer in terms of the given quantities.

B)Find the minimum sound frequency that you would hear at a position directly above the siren.

Use v for the speed of sound. Express your answer in terms of the given quantities.

C)At what point in the motion of the platform is the maximum frequency heard?

D)At what point in the motion of the platform is the minimum frequency heard?

Answer 1