A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 112
tached at B and having a springbalance at F. Another cord is attached to A arid is led horizontally to E,where it is fastened ; a spring balance at D enables the pull to be read.Find the pulls T and P of the spring balances F and D respectively whenA is at gradually increased distances x from the… … Fig. 94.—Apparatus for demonstrating the parallelo-gram of forces. x, P=~ W=Wtana.h •(1) 88 DYNAMICS CHAP. Also, T _AB IVJ~BC~h I T=~ W=W sec a.h •(2)
Physics
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