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

Question 43

Multiple Choice

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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