ru 



:i square board ; a in fixed to a 



Corner B of the board. Shew 

 .ml will rent with it* plane perpendicular t 



resting again i*e not greater 



:M . Milar par. MS is 



I with *>ne face in contact with a rough inclined plane ; 

 the limits of its position in order that equilibrium 

 may exist 



22. A board, movcablc about a horizontal straight line 

 wn plane, is supptu resting on a 



H on a horizontal table; find the great. ation 



at \v board can rest 



Itttult. Let be the inclination of the board to the hori- 



1 tan o = M where /* is the coefficient of the f 

 between the board and the sphere. 



ing PCB passes over a smooth pully T, and 

 has a tched to one ext 



to one en iform 



beam AB at B. The other end A of the beam rests upon 



position of the beam 

 librfam. 



:.- supported by friction with its carved 

 with a horizontal an 1 plane; find 



;ig position of iMjuilibi 



Result. If 6 \> lane base to the 



... 



3U 



a person tries to pull out a two-ha awer 



by pulling one of iu ha 



.stick fast. 



h a given weight 

 may be supported on a rough vertical scrc^ 



