A 7.00-kg mass and a 4.00-kg mass are mounted on a spindle, free to turn about the x axis as shown. Assume the mass of the arms and the spindle to be negligible. The rotational inertia of this system is approximately
A) 44.0 kg · m2.
B) 47.0 kg · m2.
C) 99.0 kg · m2.
D) 148 kg · m2.
E) 211 kg · m2.
Correct Answer:
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