A composite rod comprising two rods of mass m and
2m and each of length ( = 1 m as shown in the figure.
Assume o= 10 rad/s and m= 1 kg, the KE of the rotating
composite rod is
1
m
2m
(a) 125 J
(c) 250 J
(b) 1503
(d) 175 J
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