14 



ON RIFLED GUNS. 



26135 



0,7476 



4.4172225 

 9 S736G93 



19538 



47S60 



11115 



78513 



Next, estimate the work with which the missile and gas leave the gun. Denote this 



by Q'; then 



in which 



MV 2 W 

 2 2g 



W = 75,44 + 5,13 = 80,57 

 V 2 =(904) 2 5 9123368 



W = 80,57 1.9061734 



2, ? = 64 ac 8.1938200 



Q' 1028790 f P, 



6.0123302 



Then the work of friction between the projectile and gun. Call this Q", 



Q" =/ W. I 



in which 



/=0,13S; W = 75,44; I = 9,1666 - 0,419 = 8,7476 

 /= 0,138 9.1398791 



W = 75,44 1.8776017 



/ = 8,7476 0.9418889 



Q'' 91,^068 



1.9593697 



Next, compute the work of the atmospheric resistance. For this purpose take the for- 

 mula of Piobert for spherical projectiles, viz: 



(326) 



