[Electric Drill] According to the shop manual, when drilling a 12.7-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1250 rev/min. For a 12.7-mmdiameter drill bit turning at a constant 1250 rev/min, find:

(a) the maximum linear speed of any part of the bit and

(b) the maximum radial acceleration of any part of the bi