CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1 · Question Q8

An object moving at constant speed in a circle of radius r turns through an angle \theta (measured in radians) in a time t. The velocity v along the tangent is given by

1. (A)v = 2\pi r\theta / t
2. (B)v = \frac{r\theta}{2\pi t}
3. (C)v = \frac{r\theta}{t}
4. (D)v = \frac{\theta}{r t}