A chain is being unwound from a winch the force of gravity
A chain is being unwound from a winch. The force of gravity on it is 12 N/m. When 20 m have been unwound, how much work is done by gravity in unwinding another 30 m?
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a chain is being unwound from a winch the force of gravity on it is 12 nm when 20 m have been unwound how much work is
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