Mechanical and marine engineering science ... Specially written as a handbook to the Board of Trade examinations for extra-first-class engineers (1909)
Somerscales, A. N · Glasgow : J. Munro; London, Simpkin, Marshall, Hamilton, Kent · leaf 349
he, radius from either side.{Shown by dotted circle in figure 126.) ■. ,■ . r,,,.;,;^ 9*—Centre of Gravity of a Pyramid. To prove that the centre of gravity of a pyramid or cone isat one-fourth the height of the body above the base. ABC, figure 127, is a sectionthrough a square pyramid, side ofbase… … C-t- 4^2 Fig. 127. when X becomes = h, moment = A* 62 A2 4^2 .(I). 62 h Now solidity of pyramid = and if R = distance from A 3to the centre of gravity Moment = x R, equating this to (i) 62 A R 62^2 and R 62^2 X -J- 3 4 4 62A . R = f A The centre of gravity is, therefore, \ the height above the…
Naval architecture
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