Dowling, L. Wayland (Linnaeus Wayland), b. 1867, Turneaure, F. E. (Frederick Eugene), 1866- · New York, H. Holt and company · leaf 197
the upper end continuallyresting against the wall. What isPjq 2Q5 the envelope of the moving ladder ? What is the locus of its middle point ? What are the loci of the points dividing the ladder in the ratio — ? n 6. A projectile leaves the muzzle of a gun with a velocity of v feet persecond, the… … X = vt cos (p,y — vt sin <p — 2 the parameter t denoting time measured in seconds, and g, the force of gravity. Take the position of the gun as origin and the horizontal line OL as X-axis. Now, at the end of t seconds, the projectile would be at Q{ OQ — vt) were it 2 not for gravity which pulls…
Geometry, Analytic
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