A boy raises a 5kg box through a height 20m. The work done by him is
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Mass=5 kg
height=20 m
g=10m/s
work done = mgh
=5×20×10
=1000J
height=20 m
g=10m/s
work done = mgh
=5×20×10
=1000J
Answered by
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work done=displacement ×weight
w=gs
w=20×5
w=100J
w=gs
w=20×5
w=100J
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