Engineering, 24.09.2020 05:01 ayoismeisalex

1. A construction crew lifts approximately 560 lb of material several times during a day from a flatbed truck to a 32 ft rooftop. A block and tackle system with 50 lb of effort
force is designed to lift the materials.
a. What is the required actual mechanical advantage?
b. How many supporting strands will be needed in the pulley system?
c. Draw a diagram of the block and tackle system.

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1. A construction crew lifts approximately 560 lb of material several times during a day from a fla...