CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1 · Question Q29

Item 29 refers to the following diagram. A mass, m, is attached to a vertical helical spring and displaced a distance "A" from equilibrium as shown in the diagram. The mass is released so that it oscillates with simple harmonic motion with angular frequency \omega. Which of the following expressions gives the variation of velocity, v, with time, t?

1. (A)v = A \sin \omega t
2. (B)v = A \cos \omega t
3. (C)v = A\omega \sin \omega t
4. (D)v = -A\omega^2 \sin \omega t

This question uses a figure or table from the paper — you'll see it when you practise.