A Majorette Takes Two Batons and Fastens Them Together in the Middle

A majorette takes two batons and fastens them together in the middle at right angles to make an "x" shape.Each baton was 0.70 m long and each ball on the end is 0.10 kg.(Ignore the mass of the rods. ) What is the moment of inertia if the arrangement is spun around an axis through the center perpendicular to both rods?

A) 7.0E-3 kg·m²
B) 2.5E-2 kg·m²
C) 1.2E-2 kg·m²
D) 4.9E-2 kg·m²
E) 7.0E-2 kg·m²

Correct Answer:

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