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Four Identical Particles, Each with Mass M, Are Arranged in the X

Question 6

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Four identical particles, each with mass m, are arranged in the x, y plane 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: Four identical particles, each with mass m, are arranged in the x, y plane 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 kg . m<sup>2</sup> B)  12 kg.m<sup>2</sup> C)  9.6 kg .m<sup>2</sup> D)  4.8 kg . m<sup>2</sup> E)  none of these


A) 4.0 kg . m2
B) 12 kg.m2
C) 9.6 kg .m2
D) 4.8 kg . m2
E) none of these

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