 | Richard Green Parker - 1852 - 200 ページ
...at the other, and the power is applied between them. 1. In levers of this kind the power must always exceed the weight, in the same proportion as the distance of the weight from the fulcrum exceeds that of tlu: power from the fulcrum. 2. In Fig. 30, F is the fulcrum, W the weight,... | |
 | Richard Green Parker - 1856 - 502 ページ
...other, and the Fig. 33. power is applied between them. In levers of this kind the power must always exceed the weight in the same proportion as the distance of the weiglit from the fulcrum exceeds that of the power from the fulcrum, In Fig. 33 F is the fulcrum, W... | |
 | Charles Baker - 1857 - 438 ページ
...the fact that the intensity of the power must ex • ceed the intensity of the weight, just as much as the distance of the weight from the prop exceeds the distance of the power from it. To this sort of lever the human arm is generally referred ; for when we lift a weight by the... | |
 | Richard Green Parker - 1861 - 488 ページ
...other> and the Fig. 33. power is applied between them. In levers of this kind the power must always exceed the weight in the same proportion as the distance of the weight from the fulcrum exceeds that of the power from the fulcrum. In Fig. 33 F is the fulcrum, W the weight, Kg and... | |
 | Thomas Dick - 1869 - 664 ページ
...ground, and the weight being that of the barrow and its load, collected at their centre of gravity. A lever of the third kind is when the prop is at one...weight from the prop exceeds the distance of the power. Thus, let E, fig. 20, be the prop, and \V a weight of one pound, placed three times as far from the... | |
 | Richard Green Parker - 1870 - 486 ページ
...at tne Other, and the power is applied between them. In levers of this kind tJie power must always exceed the weight in the same proportion as the distance of the weight erom the fulcrum exceeds that of the power from the fulcrum In Fig. 33 F is the fulcrum, W the weight,... | |
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... them. Here the power must exceed the weight in the same proportion as the distance of the weight from the prop exceeds the distance of the power. 
