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A person trying to lose weight by burning fat lifts a mass of

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A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times. Assume that the potential energy lost each time he lowers the mass is dissipated. How much fat will he use up considering the work done only when the weight is lifted up? Fat supplies $3.8 \times 10^{7} J$ of energy per kg which is converted to mechanical energy with a $20 %$ efficiency rate. Take $g = 9.8 m s^{- 2}$ :

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A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times. Assume that the potential energy lost each time he lowers the mass is dissipated. How much fat will he use up considering the work done only when the weight is lifted up? Fat supplies

3.8 \times 10^{7} J

of energy per kg which is converted to mechanical energy with a

20 %

efficiency rate. Take

g = 9.8 m s^{- 2}

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Question Text	A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times. Assume that the potential energy lost each time he lowers the mass is dissipated. How much fat will he use up considering the work done only when the weight is lifted up? Fat supplies $3.8 \times 10^{7} J$ of energy per kg which is converted to mechanical energy with a $20 %$ efficiency rate. Take $g = 9.8 m s^{- 2}$ :
Answer Type	Video solution: 1
Upvotes	150

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