Question: See the figure below. How much work in Joules does he do on the weight? A man uses a block and tackle system to lift

See the figure below. How much work in Joules does he do on the weight? A man uses a block and tackle system to lift a 240 N weight a height of 12 m .(Notice weight in Newtons!!)
See the figure below. What length in of rope in meters must he pull?
See the figure below. How much work in Joules

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