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OpenStudy (anonymous):
how much work energy is needed to lift an object that weights 200 n to a heught of 4m?
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OpenStudy (anonymous):
to a height of 4m
OpenStudy (anonymous):
this equals m*g*h mass * acceleration due to gravity * height = 200* 9.81* 4
OpenStudy (anonymous):
so how much work energy is needed sir?
OpenStudy (anonymous):
=7848 joules
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