Q)
(chatquestion)...3. Three uniform thin aluminum rods each of
length 2 m form an equilateral triangle PQR
as shown in the figure. The mid point of the
rod PQ is at the origin of the coordinate
system. If the temperature of the system of
rods increases by 50°C, the increase in
y-coordinate of the centre of mass of the
system of the rods is ... mm.
of
(Coefficient
aluminium = 12/3 x 10-6 K-1)
of volume
expansion
%3D
P.
(a) 0.05
(c) 0.1
(b) 0.8
(d) 0.2
1 Answer
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