Social Studies, 08.05.2021 04:20 samantha9014

Some homes have stairs that are too steep or narrow for moving large pieces of furniture. In some cases, furniture may be lifted by pulleys and moved in through upper windows. What is the mechanical efficiency of a system that uses 280 N of force to lift a 100 kg bed 6 m to an upper window? Those working the system have to pull 24 m of rope to lift the bed.

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