A Block-And-Tackle Assembly Has 2 Sheaves on the Lower Block

question 72

Essay

A block-and-tackle assembly has 2 sheaves on the lower block and the end of the wire rope is attached to the upper block.The load to be picked up weighs 5 tons (10,000 lbs)and the load block weighs 100 lbs.Calculate the minimum allowable nominal breaking strength of the wire rope to meet OSHA standards.Show your work.

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