Physics, 07.07.2019 08:00 reycaden

In the pulley system shown below, 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? rope pile l= 16.74m a. 61 n b. 121 n c. 181 n d. 361 n

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