What is the work done by a man weighing 60 kg and carrying a box weighing 20 kg on his head and travelling a distance of 10 m. a)....in the vertical direction
b)....on the ( horizontal )ground which is frictionless ( g = 9.8 m/s square )....
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work done in horizontal direction is zero
and work done in vertical direction = mgh = 80 x 10 x 9.8 = 7840 j
and work done in vertical direction = mgh = 80 x 10 x 9.8 = 7840 j
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