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For how long would a 68 kg person have to swim at

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Answer #1

here,

the power of the person , P = 800 W

the fast food energy content , E = 5660 kJ

let the time of swim be t

power = energy/ time

time , t = 5660*10^3 /800

t = 7075 s

t = 1.97 hours

the time taken is 1.97 hours

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