Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 253
hown in the figure. The mechanical ad-vantage is equal to thenumber of strands sup-porting the weight. From the figure it willbe seen that if the weightbe lifted 1 foot, there aresix strands to be short-ened 1 foot. This allowsthe force (F) to move 6feet while the weightmoves 1 foot. Thus… … Figure 268. -A Laboratory Set ofPulleys. APPLICATIONS OF THE PULLEY 243 driven. This arrangement makes it harder to turn, but agreater speed can be obtained. The revolutions per minute (R. P. M.) of tico pulleys beltedtogether are inversely as their diameters. This means that thelarge pulley runs…
Physics
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