Answer
$138.72mph$
Work Step by Step
$\frac{62m}{1s}=\frac{0.062km}{\frac{1}{3600}h}=\frac{\frac{0.062}{1.609mi}}{\frac{1}{3600}}=\frac{(0.062)(3600)}{1.609}$
$\approx138.7197016780609074mph$
$=138.72mph$
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