A man holds a 10 kg box 2 m above the ground. What is the work done?
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1
the work the work done by the man is the lifting of the box 2 metre above the ground
the weight lifted by the is done by energy the man contains
the weight lifted by the is done by energy the man contains
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mass of boy=10 kg
distance travelled by boy=2m
we know the relation
work done = force x displacement
so force = mass x g
therefore, force = 10 x 10
=100N
therefore work done= 100 x 2
= 200 J
distance travelled by boy=2m
we know the relation
work done = force x displacement
so force = mass x g
therefore, force = 10 x 10
=100N
therefore work done= 100 x 2
= 200 J
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