The outlines of physics: an elementary text-book . Fig. 61. Fig. 62. the hook. Take the basket down, and, by means of the needle,stretch a thread so as to mark the position which the vertical linefrom the center of support had occupied, the position of theplumb-line. (c) Repeat the above operation with the basket suspended in quitea different position (Fig. 62). If the two trials have been carefullymade, the two threads will cut one another, or very nearly so. Sincethe center of mass lies upon both threads, it must be located at their inter-section. Note that the center of mass lies at a
The outlines of physics: an elementary text-book . Fig. 61. Fig. 62. the hook. Take the basket down, and, by means of the needle,stretch a thread so as to mark the position which the vertical linefrom the center of support had occupied, the position of theplumb-line. (c) Repeat the above operation with the basket suspended in quitea different position (Fig. 62). If the two trials have been carefullymade, the two threads will cut one another, or very nearly so. Sincethe center of mass lies upon both threads, it must be located at their inter-section. Note that the center of mass lies at a point not occupied byany of the material of which the basket is composed. (d) Fasten the weight in one corner of the basket and repeat theexperiment. Note that the center of mass has shifted. TBE BALANCE 79 75. The Balance. — The balance is a lever with equalarms, which is used for the comparison of masses. Few instruments have been brought to a higher degreeof accuracy and delicacy. With a good balance, for ex-ample, it is possible to detect w
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectphysics
