Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 475
hrown obliquelyagainst the surface of theearth, will rebound severaltimes before it comes to rest. If the bodies be non-elastic, or, which is the same thing,if e be zero, the tangent of 6 becomes infinite ; that is tosay, the body A will move along the tangent plane, or ifthe body B were reduced at… … tan 6 = — tan 9 (212); in perfectlyelastic bodies theangle ofincidence equalto angle ofreflection; which means that the angle NHF= EHN becomes equalto KHN. The angle EHN is called the angle of inci-dence, the angle KHN, commonly, the angle of reflection.Whence we see, that when a perfectly elastic…
Mechanics · Acoustics · Optics
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