Saw blade teeth appear to be stationary

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Reference no: EM13705485

A rotating saw blade has 48 teeth and 4 slots. If the room where the saw is used is illuminated with a pulsed light source, at what pulse frequencies will a) the saw blade teeth appear to be stationary? b) the blade slots appear stationary? c) Will the teeth “stop” when the slots “stop” moving? d) Will the slots “stop” when the teeth “stop” moving?

Reference no: EM13705485

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