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Question 8

From Physics HL Paper 1A (May 2025, TZ1)

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  1. Two small spheres each of mass 10 kg10\text{ kg} are 8.0 m8.0\text{ m} apart and connected by a rod of negligible mass. This system rotates about an axis halfway along the rod and at right angles to it.
A diagram showing two spheres connected by a rod of length 8.0 m.
A diagram showing two spheres connected by a rod of length 8.0 m.

What is the moment of inertia of the system?

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