A person trying to lose weight by burning fat filts a mass of `10 kg` upto a being of `1m
Channel: Doubtnut
Date: 2020-07-05

A person trying to lose weight by burning fat filts a mass of `10 kg` upto a being of `1m 1000` time . Assume that the potential energy lost each time be lower the mass is dissipated . How much far will be use up considering the work done only when the weight is lifted up ? Far supplies `3.8 xx 10^(7) J` of energy per kg wich is canverted to mechanical  energy with `x 20 %` efficiency rate Take ` = 9.8 ms^(-2)`