International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 337
heground. In Fig. 123, sup-pose that A represents thestarting point of the pro-jectile, and that it is shothorizontally outwards inthe direction of the arrowwith a velocity of 70 feetper second. Now, if theresistance of the air beneglected, the velocity inthe horizontal direction willbe uniform,… … 402 Fig. 12,3. 326 ELEMENTARY MECHANICS. would have been at 5, but as gravity has acted, it /(i//sKJ.OS feet the first second; at the end of the second secondit has fallen G4. ;32 feet, etc. Let .1 b represent the fall in one second—that is, 10.08feet, drawn to the same scale as A i, which…
Railroad engineering
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