A circular siren of radius spins counter-clockwise at a constant while simultaneously…
PHYSICS · Subjective · ISC · Physics · Motion of System of Particles and Rigid Body · Motion of System of Particles and Rigid Body
Problem
A circular siren of radius 0.25m spins counter-clockwise at a constant 120revmin−1 while simultaneously translating due east at 2.0ms−1. A stationary listener stands far to the east on the axis of translation. At what two angular positions (measured from the forward-facing radius, 0∘ in the direction of translation) will a point on the rim of the siren produce no Doppler frequency shift for the listener? Give the angles to the nearest degree.