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Question 7

From Physics HL Paper 1A (May 2025, TZ3)

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  1. A solid cylinder of mass mm and radius rr is released from rest on an inclined plane. The cylinder rolls without slipping.
    The moment of inertia of the cylinder is 12mr2\frac{1}{2}mr^2. The speed when it reaches the bottom of the inclined plane is vv.
Diagram showing a cylinder at the top of an inclined plane.
Diagram showing a cylinder at the top of an inclined plane.

What is the vertical height from which the cylinder was released?

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