Gilley, Frank M · Boston, Allyn & Bacon · leaf 136
brium. — Eoll asphere in any direction. What com-mon objects are spheres ? Roll a barrelor a cylinder (a pencil, for instance) on its side. The centreof gravity is neither raised nor lowered. Ifo amount of push-ing tips It over. It simply revolves, and remains in the posi-tion in which it IS left.… … 144. Fall of the Centre of Gravity. — When a body falls, itscentre of gravity falls. Fasten a weight, W, Fig. 137, to oneside of a round berry box.Make a hole, C, throughthe centre of the top, andanother at the centre ofgravity, G. This last maybe found by the method ofSection 134. Place the boxon…
Physics
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