Question

In the pulley system shown above, a 360 N weight is slowly lifted. Assuming the system is 100% efficient and each pulley is weightless, what is the minimum input force needed to lift the weight? (Think about the mechanical advantage)

options:

180 N


60 N


360 N


120 N

Answer 1

Question:

In the pulley system shown above, a 360 N weight is slowly lifted. Assuming the system is 100% efficient and each pulley is weightless, what is the minimum input force needed to lift the weight? (Think about the mechanical advantage)

options:

180 N

60 N

360 N

120 N

Answer:

360 N

Answer 2

180 n

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