Question

What is the direction of the linear velocity of a particle rotating in a circular motion called?

Answer 1

Explanation:

1. The direction of the particle rotating in circular motion is along the tangent of the circle at that point
2. Suppose the particle has a radial component of velocity.
3. Then there would be a change in the radial distance of the particle, which is not possible under circular motion
4. Hence, the particle has only the tangential component of velocity during circular motion.
5. Below is a diagram showing a particle's circular motion and the linear velocity of the particle in a circular motion.

Where, ${\text{V}}_{\mathrm{t}}$ is the tangential velocity, $\mathrm{\omega }$ is the angular velocity, and, $\mathrm{r}$ is the radius.