194 OUTLINES OF NATURAL PHILOSOPHY. 



HYDRAULICS, 



SECT. I. 



FLUIDS ISSUING THROUGH APERTURES IN THE 

 BOTTOM OR SIDES OF VESSELS. 



283. AF two bodies be uniformly accelerated over 

 distances that are inversely as the accelerating for- 

 ces, they will acquire equal velocities. 



This proposition is given as a lemma to that which 

 follows, 



284. The velocity with which a fluid issues from 

 an infinitely small orifice in the bottom or side of a 

 vessel that is preserved full, is equal to that which 

 a heavy body would acquire by falling from the le- 

 vel of the surface to the level of the orifice. 



BOSSTJT, Hydrod. torn. i. 218. 



Therefore, 



