Acceleration Equation for Human Power (Acceleration as a fraction of Gravity) a g = (P/W) -  V 2 ) V (W/C d A) V mph = (P/W) or V = 138 Low Speed  W*Slope V mph =  2P  1/3 or 33 High Speed  C d A  (CdA) 1/3 Power Rolling Fric.
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