A 4 metre long rod of negligible weight is supported at a point 125 cm from its one in in a load of 18 kg is suspended at a point 60 cm from the support on the shorter arm.
( A) if a weight w is placed at a distance of 250 cm from the support on the longer ram, find w.
(B) if a weight 5kg if is kept to balance the rod find its position .
(C)to which class of lever does it belong?


( Answer :(A)4.32 kgf ;(B)at distance 2.16 metre from the support on longer arm;
( C) class I.)