A disc is spinning on a spindle and you don't know the direction in which way the disc is spinning. You are provided with a set of pins.How will you use the pins to describe in which way the disc is spinning?
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Answer / Prashant Kumar Chaturvedi
To determine the direction of rotation, place one pin on the disc at an angle and give it a light push. If the pin moves away from you, the disc is rotating clockwise; if it moves toward you, the disc is rotating counterclockwise.
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