Question

ca
7. A uniform metre rule of mass 100 g is balanced on
ed
fulcrum at mark 40 cm by suspending an
unknow
+
mass m at the mark 20 cm.
th
(1) Find the value of m.
(ii) To which side the rule will tilt if the mass mi
th
moved to the mark 10 cm ?
to
(iii) What is the resultant moment now ?
of
(iv) How can it be balanced by another mass o
opa
50 g ?
is​

Answer 1

Answer:

Since, uniform metre rule of mass 100 g is balanced on a fulcrum at mark 40 cm. so, distance of c.o.m. of rule from balanced point is 10cm.