Question 7

Physics HL Paper 1A (May 2025, TZ3)

  1. A solid cylinder of mass (m) and radius (r) is released from rest on an inclined plane. The cylinder rolls without slipping.
    The moment of inertia of the cylinder is (\frac{1}{2}mr^2). The speed when it reaches the bottom of the inclined plane is (v).
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?