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Question
Four identical particles, each with mass m, are arranged in the x, yplane as shown. They are connected by light sticks to form a rigid body. If m= 2.0 kg and a= 1.0 m, the rotational inertia of this array about the y-axis is:
A) 4.0 kgm2
B) 12 kgm2
C) 9.6 kgm2
D) 4.8 kgm2
E) none of these
Answer
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