An odd-shaped object rotates at a speed of 12 rev/s A small 25 kg mass with moment of inertia I = 2.5 x 10−6 kg m2 is dropped onto the object at a distance of 3.2 cm from its center of mass. The odd-shaped object slows to a speed of 7.5 rev/s. What is the moment of inertia of the odd-shaped object?

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter10: Rotation Of A Rigid Object About A Fixed Axis
Section: Chapter Questions
Problem 10.6OQ: Figure OQ10.6 shows a system of four particles joined by light, rigid rods. Assume a = b and M is...
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 An odd-shaped object rotates at a speed of 12 rev/s A small 25 kg mass with moment of 
inertia I = 2.5 x 10−6 kg m2 is dropped onto the object at a distance of 3.2 cm from its center 
of mass. The odd-shaped object slows to a speed of 7.5 rev/s. What is the moment of inertia 
of the odd-shaped object?

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