A type of pulley that uses blocks with many grooved wheels for even more lifting strength.
Each of the ‘rope segments’ shares the load, minus one rope segment from the total of segments to calculate the total load carried. Ex. The block and tackle image shows a load of 100N, and 5 rope segments, pulling at 25 N. The total rope segments (5) take away (1) is (4) rope segments. Each segment pulls at 25 N * 4 segments is 100 N. Hey, thats the same force as the load. |
Made up of two wheels of different diameters the turn together.
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