Emerson, William, 1701-1782 · London : Printed for J. Nourse · leaf 115
VlK/^ajos. o^ ris-.4j … n ^ea.V. WHEEL CARRIAGES. 103 power be externa], as wind, water, horfes, &c. Fig,you muft not forget to add or fubtrad it, to orfrom the moving force before found ; according asthat firft acting power confpires-with, or oppofesthe- motion of the machine; and the refult is thetrue force it is…
Mechanical engineering
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