A complete and practical solution book for the common school teacher (1899)
Fairchild, J[ohn] T[heodore] [from old catalog] · Crawfis College, Ohio, The author · leaf 216
., the hounds distance. (Prof. G. E. Kelly.) PROBLEM 398. A bird sits on the top of a pole 50 ft. high: how hig-h above thepole must a boy, standing- 100 ft. from the pole, aim his arrow, to hitthe bird, the velocity of the arrow at starting- being- 100 ft. per second? Solution. (1) Let A represent… … FIG. 82. 202 FAIR CHILDS SOL UTION B O OK. velocity of arrow; /=time required for the arrow tomake its flight to P, and ;r=EP, the distance required. (3) Then AE = ^/, the hypothenuse, and as x is the distance a body would fall in t seconds, we have t2—2x-r-g. (4) A\soAE2 =…
Arithmetic · Geometry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
