Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 161
160. To find the fulcrum c when three forces act onone lever Rx= Q(a —ft —a?)+P(a —a?), _ Qa+Pa — Qbx- R+Q+P … 161. Q = weight of the lever, x = distance from thecentre of gravity of the lever to the fulcrum.Balance the lever over a sharp edge, and the centreof gravity is found. „_ Wl -Qx w_fl+Qx Lever and Static Momentum. 147
Mechanical engineering · Engineering
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