lf a 20 inch blade was turning 2500 rpm how fast would it be going if it was a wheel
+130540 I'm assuming something like a lawn mower blade......Each second it travels 2pi*(10in) * 2500 / 60 = about 2618 in = about 218.66 ft/sec
And 60mph = 88ft/s....so
m / 218.66 = 60 / 88 where m is the speed in mph........
So.......m = (218.66) * (60) / 88 = about 148.75 mph
