Physics — Pulley Systems
Mechanical advantage of a block-and-tackle.
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MA = \frac{\text{load}}{\text{effort}}
VR = n \;\text{(n supporting ropes)}
T = \frac{W}{n} \;\text{(ideal)}
\eta = \frac{MA}{VR}
Mechanical advantage of a block-and-tackle.
MA = \frac{\text{load}}{\text{effort}}
VR = n \;\text{(n supporting ropes)}
T = \frac{W}{n} \;\text{(ideal)}
\eta = \frac{MA}{VR}