A porter lifts a luggage of 20 kgfrom the ground and puts it on his head 3.0m above the ground . After keeping it on his head he walks 10 metres . Calculate the total work done by him on the luggage
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While lifting WD = mgh
= 20*9.8*3
= 588J
While walking WD= 0
TOTAL WD= 588J
= 20*9.8*3
= 588J
While walking WD= 0
TOTAL WD= 588J
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