Which expression correctly gives the linear speed of a point located a distance from…

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

Which expression correctly gives the linear speed

v

of a point located a distance

r

from the axis of a rigid body that is rotating with an angular speed

\omega

? (a)

\dfrac{r\omega}{2\pi}

(b)

\dfrac{1}{2}\,r\omega

(c)

r\omega

(d)

2\pi r\omega