London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 230
a i L I each to the sine of the angle contained by the other two: and, ifwe assume xm, and take a to represent, in this case, half theangle contained by these forces, then we have, Fix:: si7i. 2a : si7i. a. or :: 2 COS. a . \. and F=2xco5. a.But, in the case assumed, the centre of motion (the…
Architecture
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