MISCEIJ EXAMPLES. 



A flexible thread is placed in a tube of any {Win and 

 is acted on by any forces. The diameter of tin- tub 

 to that of the thread un<l is infinitesimal. 1 Menniir 

 piilibnuin. 



23. Two equal particles are connected by two L 

 string without weight, which are placed like a m-eklace on 

 a smooth cone with its axis vertical and vertex upwards; tind 

 naions of the stri 



:! 1 A triangle of area A revolves through an angle <f> ab< >ut 

 an axis in its own plane taken parallel to one side; shew that 

 the least amount of surface generated is 



where a is the greatest side. 



CAMBRIDOK: rEIVTBD BY C. J. CLAY. M.A. AT TUR IMVEMITT PRKS8. 



