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March 29, 2017

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If a 3/8" drill bit is rotating clockwise at 1300 RPM and the bit shatters, at what speed will the projectile be traveling outward?

  • Math - ,

    radius is 3/16 in

    speed of edge of drill bit: 1300 rev/min * (2pi*3/16) in/rev = 1531.5 in/min

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