Question 946371
a printing press has a roller 17 inches in diameter. the speed of a point on the rollers surface moves at 67 feet per second. what is the roller's angular speed?
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key: s=seconds, ft=feet, in=inches, rev=revolution,17π=circumference, rad=radians
{{{angular speed=67(ft/s)*(rev/17(pi)in)*12( in/ft)*2(pi)(rad/rev)}}}={{{67*12*2/17=94.6(rad/s)}}}