If you exert a force of 700 N to walk 6 m up a flight of stairs in 6 s, how much power do you use?

1 Answer
Alan P.
Mar 7, 2018

#700" Watts"#

Explanation:

Work done #=700" N " xx 6" m "=4200" Joules"#

Power #="Work done"/("time")=(4200" Joules")/(6" seconds")=700" Watts"#

Definitions
#color(white)("XXX")1" Joule" = 1 " Newton-meter"#

#color(white)("XXX")1" Watt" = 1 " Joule/second"#

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