What average horsepower is developed by an $80 \;kg $ man while climbing in $10\; s$ a flight of stairs that rises $6 m$ vertically ..............$HP$
What average horsepower is developed by an $80 \;kg $ man while climbing in $10\; s$ a flight of stairs that rises $6 m$ vertically ..............$HP$
$0.63 $
$1.26$
$1.8 $
$2.1$
What average horsepower is developed by an $80 \;kg $ man while climbing in $10\; s$ a flight of stairs that rises $6 m$ vertically ..............$HP$
$p = \frac{{mgh}}{t} = \frac{{80 \times 9.8 \times 6}}{{10}}W = \frac{{470}}{{746}}HP = 0.63\,HP$
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