Question

Question #ce032

Answer 1

For motion in a circle of radius `r`, where period for one rotation is `T` the angular velocity `ω` is given by the expression

`\omega =\frac {2\pi }{T}=2\pi f=\frac {d\theta }{dt}`
It has units radians per second

Also the linear speed `v` of the object traveling in the circle is
`v = (2 π r)/ T = ω r`

For angular velocity to be zero, either
1. `T=oo`, or
2. Frequency `f=0`, or
3. `v=0` or
4. radius `r=oo`