Calculate the work done by the coolie if he lifts a bag of 12 kg from the ground and puts it
on his head 1.6 m above the ground. (Take, g = 10 m/s2)

Question

Calculate the work done by the coolie if he lifts a bag of 12 kg
from the ground and puts it
on his head 1 6 m above the ground (Take, g = 10 m/s2)

Siddharth Shankar Singh · Accepted Answer

Solution:
Mass of the bag, m=12 kgBag is lifted to the height, h =1
6 mAcceleration due to gravity, g = 10 m/s2Required force applied by the coolie to lift the bag against the gravity, F = mgSo, work done by the coolie to lift the bag to height h,W=Force
Displacement    =mg
h    =12×10×1
6    =192 J 
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Calculate the work done by the coolie if he lifts a bag of 12 kg from the ground and puts it on his head 1.6 m above the ground. (Take, g = 10 m/s2)

Calculate the work done by the coolie if he lifts a bag of 12 kg from the ground and puts it
on his head 1.6 m above the ground. (Take, g = 10 m/s2)