-^i^ W … Fig. 21. Fig. 22. Experiment 23. — Place on a toy wagon a stone of such size thatwagon and stone together weigh 50 units. Place the w^agon thusloaded on an inchned plane (Fig. 22). Fasten one end of a stoutstring to the wagon, and to the other end of the string attach a v^eightof such size that \…
Physics
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