During pure rotational motion, the particles at the axis of rotation are said to be not rotating, doing maths on it we get proof as well.
v=linear velocity, ω=angular velocity and r=distance of the particle from the axis of rotation,
v=ωr ⇒ v/r=ω
for the particles lying at the axis of rotation, v=0, and r=0, so the ω becomes indeterminate.
but physically observing a rotating body(like a wheel), even the particles at the axis of rotation seem to be rotating. Help me understand it by mentioning physical explanation for this.