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 215
. 99. If a point moves along any path, and another point ismade to move towards it according to any law, the path ofthe latter is called a Curve of Pursuit. PROBLEM 397.A fox 40 rd. due south of a hound is running- due east, 25 ft. persecond; the hound gives chase atthe rate of 30 ft. per second:… … MENSURA TION. 201 (3) Let P and F be their position at any instant, and P and H their positions at the next instant. (4) Put AD=^, B?—s, AF=j, and PG = w. (5) Then EP=4 PP = ^, and PP-HM=^, (A). (6) Now, let the rate of the hound be m times that of the fox. (7) Then mdy—ds. Put AB=b, AC = «. (8)…
Arithmetic · Geometry
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