A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 149
r negative couple,and L5 and L6, a positive couple. QUESTIONS AND PROBLEMS. (1) Define the moment of a force. (2) A force of 5 Ibs. and a force of 10 Ibs.are applied in parallel but opposite direc-tions to a straight rigid bar, the distancebetween the points of application being 8feet. What is the… … FIG. 86. * Fig. 80 assumes that the mans centre of gravity is on a levelwith his belt. This need not be the fact. TWO SETS OF FORCES AT RIGHT ANGLES. 127 (a) Let a force of 10 Ibs. north be applied at point 28, and a forceof 15 Ibs. south be applied at point 26. Tell the direction, magni-tude, and…
Physics
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