VALUE OF ACCELERATION OF GRAVITY— MEXDEXHALL. 



9 



Let- 



t — thickness of ring. 

 At = maximum thickness of added wedge. 

 Jin — mass of added wedge. 

 A\ v = moment of inertia of added wedge about P. 



Then- 



Similarly- 

 Also — 



Am _ 1 At 



m ~ -2 t 



JI,= JI +J„ / [(| + / f-(-|) 2 



At 



= 0.692 MR 2 -j putting R = V3 r 

 JI P . = 0.307MR 2 -^ 



•In 1 



I+^Iy 



l\l (Mr+Amk)g 

 (Where h= r distance from P to center of gravity of wedge) 



J/ 



= 2711 



= T, 



Rx/3 (1+0.692 - t 



~~A~t 

 27(1+0.788 -j) 



Similarly 



1 + 0.692 -j 

 1+0.788 -j 



At 

 1+0.307 -j 



~~A~t 

 1+0.230 — 



