Question

Fred rides on a toy train moving in a horizontal circle. The train has a 392.5 Hz horn on it. When the Fred/toy train moves toward Mark on the bottom side of the circle, Mark hears a frequency of 418.75 Hz. When the Fred/toy train moves away on the top part of the circle, Mark hears a frequency of 380.79 Hz. Determine the speed of the Fred/toy train. Use 344 m/s for the speed of sound in the air if needed. 1.

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3D at top 344-)-0 344 Us 3807% 3g2 . 5 0-10 at hottom 418.75- 392.5 344 344-0 4412.75 3444Us 3s0.79+41875 3u34y 921.o6 - 698

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