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posted by Anonymous on Friday, October 3, 2008 at 9:36pm.
convert 1.31 rad/s to rpm
1 radian = 1/(2pi) rotations so 1.31 radians = 1.31/(2pi) rotations 1 second = (1/60)minute then 1.31 rad/s = [1.31/(2pi)]/(1/60)] rotations/min = 39.3/pi rpm
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