A cheerleader lifting a 300 pound football player off the ground . From the ceil

Question

A cheerleader lifting a 300 pound football player off the ground . From the ceiling descended four pulleys , all connected by a single rope . there was a sling connected to the two lower pulleys for Dave to sit in . As he sat in the sling , he wondered if the girls were really going to be able to pull it off . 1. How did the pulleys aid the cheerleaders in their quest to beat the football players? 2. What is the minimum weight of a person pulling the rope in order to lift a football player who weighs 300 pounds (approximately 136 kg) by just hanging on the rope? 3. What if the cheerleaders had only set up a 2-pulley system? Would this 2-pulley system require more or less force than the 4-pulley system? Would a person weighing 120 pounds be able to lift the 136 kg football player, using the 2-pulley system, by just hanging on the rope?

Explanation / Answer

descended four pulleys please post the figure unable to understand the question

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